A TV factory produces 5,000 TVs in March, which is 1/9 more than the original plan. How many TVs were originally planned to be produced in March?
某电视机厂三月份生产电视机5000台，比原计划增产(1/9)，三月份原计划生产电视机多少台？
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 + (1/9)</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">5_000 / (10/9)</gadget>
<output>4_500</output>

<result>4_500</result>