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Finding the Third Proportional to 12,471 and 18,126

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Solution

The third proportional to 12,471 and 18,126 is: 26,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471 : 18,126 = 18,126 : x
  2. Step 2: Convert to fraction form
    12,471/18,126 = 18,126/x
  3. Step 3: Cross multiply
    12,471x = 18,126 × 18,126
  4. Step 4: Simplify right side
    12,471x = 328,551,876
  5. Step 5: Solve for x
    x = 328,551,876/12,471
  6. Step 6: Final answer
    x = 26,345.27

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.