kind of assorted candy is made by mixing halva, milk candy and fruit candy in a ratio of 5:4:3. The unit price ratio of halva, milk candy and fruit candy is 11:8:7. To synthesize such assorted candy 120 kg, assorted sugar 32.4 yuan per kilogram, how much is the halva before mixing?
一种什锦糖是由酥糖、奶糖和水果糖按5：4：3的比例混合而成，酥糖、奶糖和水果糖的单价比是11：8：7，要合成这样的什锦糖120千克，什锦糖每千克32.4元，混合前酥糖每千克多少元？
<gadget id="calculator">5 * 11</gadget>
<output>55</output>

<gadget id="calculator">4 * 8</gadget>
<output>32</output>

<gadget id="calculator">3 * 7</gadget>
<output>21</output>

<gadget id="calculator">55 + 32 + 21</gadget>
<output>108</output>

<gadget id="calculator">55 / 108</gadget>
<output>55/108 = around 0.509259</output>

<gadget id="calculator">120 * 5</gadget>
<output>600</output>

<gadget id="calculator">5 + 4 + 3</gadget>
<output>12</output>

<gadget id="calculator">600 / 12</gadget>
<output>50</output>

<gadget id="calculator">(55/108) / 50</gadget>
<output>11/1_080 = around 0.010185</output>

<gadget id="calculator">32.4 * 120 * (11/1_080)</gadget>
<output>39.6</output>

<result>39.6</result>