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InterviewSolution
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Find a fourth proportional to the numbers 2,5,4. |
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Answer» Let x be the fourth propoetional, then 2: 5 :: 4 : xor `2/5=4/x` `x=(5xx4)/2=10.` If b : : b : x,x is called the third proportional of a, b. We have `a/b=b/x " or " x=b^(2)/a`. Thus, third proportional of a, b is `b/a` |
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