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Finding the Third Proportional to 113.25 and 125

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Solution

The third proportional to 113.25 and 125 is: 137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.25 : 125 = 125 : x
  2. Step 2: Convert to fraction form
    113.25/125 = 125/x
  3. Step 3: Cross multiply
    113.25x = 125 × 125
  4. Step 4: Simplify right side
    113.25x = 15,625
  5. Step 5: Solve for x
    x = 15,625/113.25
  6. Step 6: Final answer
    x = 137.97

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.