A TV set is now priced at 7,200 yuan each, which is lower than the original price (4/19). How much was each set originally?
一种电视机现在每台售价7200元，比原来售价降低(4/19)，原来每台多少钱？
<gadget id="calculator">4 / 19</gadget>
<output>4/19 = around 0.210526</output>

<gadget id="calculator">1 - (4/19)</gadget>
<output>15/19 = around 0.789474</output>

<gadget id="calculator">7_200 / (15/19)</gadget>
<output>9_120</output>

<result>9_120</result>