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Finding the Third Proportional to 3,934 and 8,567

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Solution

The third proportional to 3,934 and 8,567 is: 18,656.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934 : 8,567 = 8,567 : x
  2. Step 2: Convert to fraction form
    3,934/8,567 = 8,567/x
  3. Step 3: Cross multiply
    3,934x = 8,567 × 8,567
  4. Step 4: Simplify right side
    3,934x = 73,393,489
  5. Step 5: Solve for x
    x = 73,393,489/3,934
  6. Step 6: Final answer
    x = 18,656.20

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.