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    Question

    Find the fourth proportion of 5, 12 and

    30.
    A 72 Correct Answer Incorrect Answer
    B 42 Correct Answer Incorrect Answer
    C 65 Correct Answer Incorrect Answer
    D 82 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the fourth proportional be 'x' So, (5/12) = (30/x) So, x = 30 × (12/5) = 72

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