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Finding the Third Proportional to 8,117.72 and 9,325.13

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Solution

The third proportional to 8,117.72 and 9,325.13 is: 10,712.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.72 : 9,325.13 = 9,325.13 : x
  2. Step 2: Convert to fraction form
    8,117.72/9,325.13 = 9,325.13/x
  3. Step 3: Cross multiply
    8,117.72x = 9,325.13 × 9,325.13
  4. Step 4: Simplify right side
    8,117.72x = 86,957,956.27
  5. Step 5: Solve for x
    x = 86,957,956.27/8,117.72
  6. Step 6: Final answer
    x = 10,712.12

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.