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Finding the Third Proportional to 19,928 and 29,775

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Solution

The third proportional to 19,928 and 29,775 is: 44,487.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928 : 29,775 = 29,775 : x
  2. Step 2: Convert to fraction form
    19,928/29,775 = 29,775/x
  3. Step 3: Cross multiply
    19,928x = 29,775 × 29,775
  4. Step 4: Simplify right side
    19,928x = 886,550,625
  5. Step 5: Solve for x
    x = 886,550,625/19,928
  6. Step 6: Final answer
    x = 44,487.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.