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Finding the Third Proportional to 5,542 and 12,831

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Solution

The third proportional to 5,542 and 12,831 is: 29,706.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,542 : 12,831 = 12,831 : x
  2. Step 2: Convert to fraction form
    5,542/12,831 = 12,831/x
  3. Step 3: Cross multiply
    5,542x = 12,831 × 12,831
  4. Step 4: Simplify right side
    5,542x = 164,634,561
  5. Step 5: Solve for x
    x = 164,634,561/5,542
  6. Step 6: Final answer
    x = 29,706.71

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.