Fish and trees continually grow, but their growth is restricted, so as they grow older they grow proportionately more slowly. Determine how long it would take for a pet shop goldfish (5cm in length) to reach the size of a whale shark (12m in length) with and without restricted growth constraints. Alternatively, determine how long it would take for the trunk of a Christmas tree (15cm trunk diameter) to reach the size of a giant sequoia (10m trunk diameter) with and without restricted growth constraints.
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