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Question
Find the second term of the proportion whose first, third, and fourth terms are 9, 8, and 24 respectively.
Solution
Let the second term = x
9 : x : : 8 : 24
⇒ x × 8 = 24 × 9
x = `(24xx9)/8` = 3 × 9 = 27
The second term of proportion = 27
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