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Finding the Third Proportional to 3,856.13 and 8,469.94

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Solution

The third proportional to 3,856.13 and 8,469.94 is: 18,604.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.13 : 8,469.94 = 8,469.94 : x
  2. Step 2: Convert to fraction form
    3,856.13/8,469.94 = 8,469.94/x
  3. Step 3: Cross multiply
    3,856.13x = 8,469.94 × 8,469.94
  4. Step 4: Simplify right side
    3,856.13x = 71,739,841.25
  5. Step 5: Solve for x
    x = 71,739,841.25/3,856.13
  6. Step 6: Final answer
    x = 18,604.13

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.