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Finding the Third Proportional to 25,560 and 39,149

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Solution

The third proportional to 25,560 and 39,149 is: 59,962.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,560 : 39,149 = 39,149 : x
  2. Step 2: Convert to fraction form
    25,560/39,149 = 39,149/x
  3. Step 3: Cross multiply
    25,560x = 39,149 × 39,149
  4. Step 4: Simplify right side
    25,560x = 1,532,644,201
  5. Step 5: Solve for x
    x = 1,532,644,201/25,560
  6. Step 6: Final answer
    x = 59,962.61

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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.