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Finding the Third Proportional to 8,163 and 9,216

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Solution

The third proportional to 8,163 and 9,216 is: 10,404.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163 : 9,216 = 9,216 : x
  2. Step 2: Convert to fraction form
    8,163/9,216 = 9,216/x
  3. Step 3: Cross multiply
    8,163x = 9,216 × 9,216
  4. Step 4: Simplify right side
    8,163x = 84,934,656
  5. Step 5: Solve for x
    x = 84,934,656/8,163
  6. Step 6: Final answer
    x = 10,404.83

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.