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    Question

    What is the fourth proportion of 17, 19 and

    34?
    A 49 Correct Answer Incorrect Answer
    B 38 Correct Answer Incorrect Answer
    C 62 Correct Answer Incorrect Answer
    D 50 Correct Answer Incorrect Answer

    Solution

    We know the formula to find the fourth proportion - => a : b = c : d => 17 : 19 :: 34 : d => d = (34 × 19)/17 => d = 38

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