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Finding the Third Proportional to 18,920 and 29,038

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Solution

The third proportional to 18,920 and 29,038 is: 44,566.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920 : 29,038 = 29,038 : x
  2. Step 2: Convert to fraction form
    18,920/29,038 = 29,038/x
  3. Step 3: Cross multiply
    18,920x = 29,038 × 29,038
  4. Step 4: Simplify right side
    18,920x = 843,205,444
  5. Step 5: Solve for x
    x = 843,205,444/18,920
  6. Step 6: Final answer
    x = 44,566.88

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.