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Here's the question you clicked on:
suju101
the fourth proportional 6, 8, 15 is..........?
6 is to 8 as 15 is to x where x is the fourth proportional. 6/8 = 15/x 3/4 = 15/x 3x = 4*15 x = 20
What this means is the following: 6 / 8 = 15 / 20
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