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Third proportional: b squared over a

This type of question, asked 5 times: 18 Jul 2023 S1, 19 Jul 2023 S3, 21 Jul 2023 S4, 27 Jul 2023 S2, 27 Jul 2023 S3. All 5 questions below, oldest first.

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  1. Question 1

    18 Jul 2023 S1

    60
    The third proportional to (x2−y2)(x^2 - y^2) and (x−y)(x - y) is:

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  2. Question 2

    19 Jul 2023 S3

    69
    The third proportional between 25 and 35 is:

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  3. Question 3

    21 Jul 2023 S4

    52
    If 28 : 98 :: 98 : y, find the value of y.

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  4. Question 4

    27 Jul 2023 S2

    71
    If the third proportional of 3x23x^2 and 4xy4xy is 48, then find the positive value of y.

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  5. Question 5

    27 Jul 2023 S3

    61
    The third proportional to 7 and 63 is:

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