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Finding the Third Proportional to 3,924 and 9,261

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Solution

The third proportional to 3,924 and 9,261 is: 21,856.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924 : 9,261 = 9,261 : x
  2. Step 2: Convert to fraction form
    3,924/9,261 = 9,261/x
  3. Step 3: Cross multiply
    3,924x = 9,261 × 9,261
  4. Step 4: Simplify right side
    3,924x = 85,766,121
  5. Step 5: Solve for x
    x = 85,766,121/3,924
  6. Step 6: Final answer
    x = 21,856.81

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.