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Finding the Third Proportional to 15,331.78 and 25,234.03

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Solution

The third proportional to 15,331.78 and 25,234.03 is: 41,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,331.78 : 25,234.03 = 25,234.03 : x
  2. Step 2: Convert to fraction form
    15,331.78/25,234.03 = 25,234.03/x
  3. Step 3: Cross multiply
    15,331.78x = 25,234.03 × 25,234.03
  4. Step 4: Simplify right side
    15,331.78x = 636,756,333.13
  5. Step 5: Solve for x
    x = 636,756,333.13/15,331.78
  6. Step 6: Final answer
    x = 41,531.79

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.