The current cost of making a plush toy is 18 yuan, which is 1/7 lower than before. The original cost of the plush toy is equivalent to (3/4) the cost of an electric toy. How much is the cost of an electric toy?
制作一个毛绒玩具现在的成本是18元，比原来降低了(1/7)，毛绒玩具原来的成本相当于一个电动玩具成本的(3/4)，一个电动玩具的成本是多少元？
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 - (1/7)</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">18 / (6/7) / (3/4)</gadget>
<output>28</output>

<result>28</result>