The first time a set of furniture was sold was 10% lower than the original price, and the second time it was lowered by 10% again. Now it sells for 3630 yuan. How much is the original price of this set of furniture?
一套家具销售中第一次比原价降低了10%，第二次又降低了10%，现在卖3630元，这套家具原价多少元？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">3_630 / (9/10) / (9/10)</gadget>
<output>121_000/27 = around 4_481.481481</output>

<result>121_000/27 = around 4_481.481481</result>