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Finding the Third Proportional to 5,327 and 10,915

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Solution

The third proportional to 5,327 and 10,915 is: 22,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,327 : 10,915 = 10,915 : x
  2. Step 2: Convert to fraction form
    5,327/10,915 = 10,915/x
  3. Step 3: Cross multiply
    5,327x = 10,915 × 10,915
  4. Step 4: Simplify right side
    5,327x = 119,137,225
  5. Step 5: Solve for x
    x = 119,137,225/5,327
  6. Step 6: Final answer
    x = 22,364.79

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.