Same number subtracted from given numbers to make them proportional

This type of question, asked 2 times: 26 Jul 2023 S4, 14 Sep 2025 S2. All 2 questions below, oldest first.

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Question 1
26 Jul 2023 S4
62 $What smallest positive number should be subtracted from 2 and 3 so that 4 is the third proportion to them?$
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Question 2
14 Sep 2025 S2
53 $What should be subtracted from 10, 12, 13, 16 so that the remaining numbers may be proportional?$
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