An orchard produced 4,500 kilograms of apples last year. This year, due to the good weather, the production has increased by 20% compared to last year. How many kilograms of apples were produced this year?
一个果园里去年产了4500千克的苹果，今年因为气候好，比去年增产了2成，今年产了多少千克苹果？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">4_500 * (6/5)</gadget>
<output>5_400</output>

<result>5_400</result>