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Finding the Third Proportional to 40,020 and 53,706

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Solution

The third proportional to 40,020 and 53,706 is: 72,072.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,020 : 53,706 = 53,706 : x
  2. Step 2: Convert to fraction form
    40,020/53,706 = 53,706/x
  3. Step 3: Cross multiply
    40,020x = 53,706 × 53,706
  4. Step 4: Simplify right side
    40,020x = 2,884,334,436
  5. Step 5: Solve for x
    x = 2,884,334,436/40,020
  6. Step 6: Final answer
    x = 72,072.32

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.