Question 402717
Solve the proportion: 4/(x+1) = 3/(x+2)
Cross-multiply:
4(x+2) = 3(x+1)
4x+8 = 3x+3
x = -5
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Solve the proportion: x/(x+3) = (x-2)/x
Cross-multiply:
x^2 = (x+3)(x-2)
x^2 = x^2+x-6
x-6 = 0
x = 6
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Solve the proportion: 5/x = 8/15
x/5 = 15/8
x = 5(15/8)
x = 75/8
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Cheers,
Stan H.