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Finding the Third Proportional to 22,620 and 40,137

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Solution

The third proportional to 22,620 and 40,137 is: 71,219.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,620 : 40,137 = 40,137 : x
  2. Step 2: Convert to fraction form
    22,620/40,137 = 40,137/x
  3. Step 3: Cross multiply
    22,620x = 40,137 × 40,137
  4. Step 4: Simplify right side
    22,620x = 1,610,978,769
  5. Step 5: Solve for x
    x = 1,610,978,769/22,620
  6. Step 6: Final answer
    x = 71,219.22

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.