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Finding the Third Proportional to 20,442 and 41,744

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Solution

The third proportional to 20,442 and 41,744 is: 85,244.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442 : 41,744 = 41,744 : x
  2. Step 2: Convert to fraction form
    20,442/41,744 = 41,744/x
  3. Step 3: Cross multiply
    20,442x = 41,744 × 41,744
  4. Step 4: Simplify right side
    20,442x = 1,742,561,536
  5. Step 5: Solve for x
    x = 1,742,561,536/20,442
  6. Step 6: Final answer
    x = 85,244.18

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.