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Finding the Third Proportional to 251.44 and 325.97

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Solution

The third proportional to 251.44 and 325.97 is: 422.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.44 : 325.97 = 325.97 : x
  2. Step 2: Convert to fraction form
    251.44/325.97 = 325.97/x
  3. Step 3: Cross multiply
    251.44x = 325.97 × 325.97
  4. Step 4: Simplify right side
    251.44x = 106,255.63
  5. Step 5: Solve for x
    x = 106,255.63/251.44
  6. Step 6: Final answer
    x = 422.59

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.