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Finding the Third Proportional to 251.38 and 332.69

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Solution

The third proportional to 251.38 and 332.69 is: 440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.38 : 332.69 = 332.69 : x
  2. Step 2: Convert to fraction form
    251.38/332.69 = 332.69/x
  3. Step 3: Cross multiply
    251.38x = 332.69 × 332.69
  4. Step 4: Simplify right side
    251.38x = 110,680.97
  5. Step 5: Solve for x
    x = 110,680.97/251.38
  6. Step 6: Final answer
    x = 440.30

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.