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Finding the Third Proportional to 8,565.75 and 11,161.13

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Solution

The third proportional to 8,565.75 and 11,161.13 is: 14,542.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,565.75 : 11,161.13 = 11,161.13 : x
  2. Step 2: Convert to fraction form
    8,565.75/11,161.13 = 11,161.13/x
  3. Step 3: Cross multiply
    8,565.75x = 11,161.13 × 11,161.13
  4. Step 4: Simplify right side
    8,565.75x = 124,570,711.27
  5. Step 5: Solve for x
    x = 124,570,711.27/8,565.75
  6. Step 6: Final answer
    x = 14,542.88

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.