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09 Jan 2016, 10:23
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I just started studying for the GMAT again using Magoosh. I am currently enrolled in an MBA program and will be graduating by the end of the year hoping to get accepted into a PhD program. That's why I need to re-take my GMAT and I decided to take a different approach this time using some expert's help. 
I really really like Magoosh. The videos are super clear and easy to understand and Mike is awesome at explaining things.
However, I did run into my first problem now while watching the video: Operations with proportions.
The concept is clear, yes.
But I do not get the same answer for this problem: 96/64 = 54/6x
According to Magoosh the answer is x = 6 but I am not getting the same answer and since there is no explanation of how this answer is obtained I really can't figure it out. I am sure it must a be a real simple thinking error on my part.
I did cancel each fraction first and ended up with > 3/2 = 9/x.
Then I canceled the numerator on each side of the proportion which is "legal" according to the video.
This leaves me with 1/2 = 3/x
Then I cross-multiplied = 2x = 3
End result: x = 3/2
The video says x = 6???
What did I do wrong here?
I really really like Magoosh. The videos are super clear and easy to understand and Mike is awesome at explaining things.
However, I did run into my first problem now while watching the video: Operations with proportions.
The concept is clear, yes.
But I do not get the same answer for this problem: 96/64 = 54/6x
According to Magoosh the answer is x = 6 but I am not getting the same answer and since there is no explanation of how this answer is obtained I really can't figure it out. I am sure it must a be a real simple thinking error on my part.
I did cancel each fraction first and ended up with > 3/2 = 9/x.
Then I canceled the numerator on each side of the proportion which is "legal" according to the video.
This leaves me with 1/2 = 3/x
Then I cross-multiplied = 2x = 3
End result: x = 3/2
The video says x = 6???
What did I do wrong here?
09 Jan 2016, 10:47
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Silviax
hi,
you have gone correct till the last step..
\(\frac{1}{2}= \frac{3}{x}\)..
when you cross multiply it becomes .. 1*x=2*3..
x=6..
09 Jan 2016, 11:04
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Thank you. Oh my god I can't believe I did that. 
I knew it had to be something silly. I think I have studied enough for today and will take a break until tomorrow.
Thanks again.
I knew it had to be something silly. I think I have studied enough for today and will take a break until tomorrow. Thanks again.
chetan2u
