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suju101

  • 4 years ago

the fourth proportional 6, 8, 15 is..........?

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  1. Directrix
    • 4 years ago
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    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

  2. Directrix
    • 4 years ago
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    What this means is the following: 6 / 8 = 15 / 20

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