請解釋解法---Here is the extracted content from the image: **Question Stem:** 已知 $2^x = 3^y = 5^z$, 且 $x, y, z$ 為正, 則 $2x, 3y, 5z$ 大小關係? **Other Relevant Text:** (None visible in the image, except the question itself) **Options:** (No options are provided in the image)

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