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Finding the Third Proportional to 27,420 and 41,866

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Solution

The third proportional to 27,420 and 41,866 is: 63,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420 : 41,866 = 41,866 : x
  2. Step 2: Convert to fraction form
    27,420/41,866 = 41,866/x
  3. Step 3: Cross multiply
    27,420x = 41,866 × 41,866
  4. Step 4: Simplify right side
    27,420x = 1,752,761,956
  5. Step 5: Solve for x
    x = 1,752,761,956/27,420
  6. Step 6: Final answer
    x = 63,922.76

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.