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Finding the Third Proportional to 12,489 and 26,132.25

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Solution

The third proportional to 12,489 and 26,132.25 is: 54,679.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489 : 26,132.25 = 26,132.25 : x
  2. Step 2: Convert to fraction form
    12,489/26,132.25 = 26,132.25/x
  3. Step 3: Cross multiply
    12,489x = 26,132.25 × 26,132.25
  4. Step 4: Simplify right side
    12,489x = 682,894,490.06
  5. Step 5: Solve for x
    x = 682,894,490.06/12,489
  6. Step 6: Final answer
    x = 54,679.68

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.