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Finding the Third Proportional to 15,876 and 34,866

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Solution

The third proportional to 15,876 and 34,866 is: 76,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,876 : 34,866 = 34,866 : x
  2. Step 2: Convert to fraction form
    15,876/34,866 = 34,866/x
  3. Step 3: Cross multiply
    15,876x = 34,866 × 34,866
  4. Step 4: Simplify right side
    15,876x = 1,215,637,956
  5. Step 5: Solve for x
    x = 1,215,637,956/15,876
  6. Step 6: Final answer
    x = 76,570.80

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.