tent manufacturing company planned to produce 3,000 tents per day in 15 days to support the earthquake-stricken area. As a result, the production task was completed 12 days ahead of schedule. How many tents are actually produced on average per day? (Solve using ratio method)
某帐篷制造有限公司计划用15天每天生产3000顶帐篷支援地震灾区，结果提前到12天就完成了生产任务，实际平均每天生产帐篷多少顶？(用比例方法解答)
<gadget id="calculator">15 * 3_000</gadget>
<output>45_000</output>

<gadget id="calculator">15 - 12</gadget>
<output>3</output>

<gadget id="calculator">45_000 / 3</gadget>
<output>15_000</output>

<result>15_000</result>