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Mean proportional of two numbers

The same question, asked 6 times: 14 Jul 2023 S2*, 18 Jul 2023 S2*, 12 Sep 2024 S1*, 12 Sep 2024 S3*, 13 Sep 2024 S3*, 18 Sep 2024 S1. Every wording below, oldest first.

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  1. Question 1

    14 Jul 2023 S2

    69
    The mean proportion between 7 and 112 is:

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  2. Question 2

    18 Jul 2023 S2

    59
    If 405 : y :: y : 125, and y>0y > 0, then find the value of y.

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  3. Question 3

    12 Sep 2024 S1

    69
    If 28.9:x::x:36.128.9 : x :: x : 36.1, and x>0x > 0, then find the value of x.

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  4. Question 4

    12 Sep 2024 S3

    68
    The mean proportional of 2 and 32 is _____.

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  5. Question 5

    13 Sep 2024 S3

    71
    Find the mean proportional of 12.96 and 0.16.

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  6. Question 6

    18 Sep 2024 S1

    74
    Find the mean proportional of 36 and 100.

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