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Finding the Third Proportional to 20,918 and 32,612

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Solution

The third proportional to 20,918 and 32,612 is: 50,843.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,918 : 32,612 = 32,612 : x
  2. Step 2: Convert to fraction form
    20,918/32,612 = 32,612/x
  3. Step 3: Cross multiply
    20,918x = 32,612 × 32,612
  4. Step 4: Simplify right side
    20,918x = 1,063,542,544
  5. Step 5: Solve for x
    x = 1,063,542,544/20,918
  6. Step 6: Final answer
    x = 50,843.41

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.