Yingchun Agricultural Machinery Factory plans to produce a batch of rice transplanters, and has completed 68% of the plan. If another 5,000 units are produced, the total output will exceed 18% of the planned output. So, how many rice transplanters were originally planned to be produced?
迎春农机厂计划生产一批插秧机，现已完成计划的68%，如果再生产5000台，总产量就超过计划产量的18%．那么，原计划生产插秧机多少台？
<gadget id="calculator">18 / 100</gadget>
<output>9/50 = around 0.18</output>

<gadget id="calculator">68 / 100</gadget>
<output>17/25 = around 0.68</output>

<gadget id="calculator">(9/50) - (17/25)</gadget>
<output>-1/2 = around -0.5</output>

<gadget id="calculator">1 + (-1/2)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">5_000 / (1/2)</gadget>
<output>10_000</output>

<result>10_000</result>