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Finding the Third Proportional to 20,715 and 32,134

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Solution

The third proportional to 20,715 and 32,134 is: 49,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,715 : 32,134 = 32,134 : x
  2. Step 2: Convert to fraction form
    20,715/32,134 = 32,134/x
  3. Step 3: Cross multiply
    20,715x = 32,134 × 32,134
  4. Step 4: Simplify right side
    20,715x = 1,032,593,956
  5. Step 5: Solve for x
    x = 1,032,593,956/20,715
  6. Step 6: Final answer
    x = 49,847.64

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.