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Finding the Third Proportional to 11,985 and 26,331

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Solution

The third proportional to 11,985 and 26,331 is: 57,849.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985 : 26,331 = 26,331 : x
  2. Step 2: Convert to fraction form
    11,985/26,331 = 26,331/x
  3. Step 3: Cross multiply
    11,985x = 26,331 × 26,331
  4. Step 4: Simplify right side
    11,985x = 693,321,561
  5. Step 5: Solve for x
    x = 693,321,561/11,985
  6. Step 6: Final answer
    x = 57,849.11

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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.