Step 1: Identify the given values:
- Initial length of the aluminum vat, \( L_0 = 15 \, m \)
- Coefficient of linear expansion for aluminum, \( \alpha = 25 \times 10^{-6} \, ^\circ C^{-1} \)
- Initial temperature, \( T_0 = 20 \, ^\circ C \)
- Final temperature
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