For a trapezoidal steel plate, the sum of the upper and lower bases is 24.8m, which is 4 times the height. If the price of this steel plate is 82 yuan per square meter, how much does it cost to buy this steel plate?
一块梯形钢板，上下底之和是24.8m，是高的4倍．如果这种钢板每平方米售价是82元，购买这块钢板需要多少钱？
<gadget id="calculator">24.8 / 4</gadget>
<output>6.2</output>

<gadget id="calculator">6.2 / 2</gadget>
<output>3.1</output>

<gadget id="calculator">24.8 * 3.1 * 82</gadget>
<output>6_304.16</output>

<result>6_304.16</result>