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Finding the Third Proportional to 250.88 and 531

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Solution

The third proportional to 250.88 and 531 is: 1,123.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.88 : 531 = 531 : x
  2. Step 2: Convert to fraction form
    250.88/531 = 531/x
  3. Step 3: Cross multiply
    250.88x = 531 × 531
  4. Step 4: Simplify right side
    250.88x = 281,961
  5. Step 5: Solve for x
    x = 281,961/250.88
  6. Step 6: Final answer
    x = 1,123.91

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.