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Finding the Third Proportional to 5,374 and 12,436

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Solution

The third proportional to 5,374 and 12,436 is: 28,778.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,374 : 12,436 = 12,436 : x
  2. Step 2: Convert to fraction form
    5,374/12,436 = 12,436/x
  3. Step 3: Cross multiply
    5,374x = 12,436 × 12,436
  4. Step 4: Simplify right side
    5,374x = 154,654,096
  5. Step 5: Solve for x
    x = 154,654,096/5,374
  6. Step 6: Final answer
    x = 28,778.21

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.