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Finding the Third Proportional to 11,474 and 15,942

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Solution

The third proportional to 11,474 and 15,942 is: 22,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,474 : 15,942 = 15,942 : x
  2. Step 2: Convert to fraction form
    11,474/15,942 = 15,942/x
  3. Step 3: Cross multiply
    11,474x = 15,942 × 15,942
  4. Step 4: Simplify right side
    11,474x = 254,147,364
  5. Step 5: Solve for x
    x = 254,147,364/11,474
  6. Step 6: Final answer
    x = 22,149.85

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.