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Finding the Third Proportional to 3,934.50 and 9,069

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Solution

The third proportional to 3,934.50 and 9,069 is: 20,903.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.50 : 9,069 = 9,069 : x
  2. Step 2: Convert to fraction form
    3,934.50/9,069 = 9,069/x
  3. Step 3: Cross multiply
    3,934.50x = 9,069 × 9,069
  4. Step 4: Simplify right side
    3,934.50x = 82,246,761
  5. Step 5: Solve for x
    x = 82,246,761/3,934.50
  6. Step 6: Final answer
    x = 20,903.99

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.