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Finding the Third Proportional to 269.25 and 366.75

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Solution

The third proportional to 269.25 and 366.75 is: 499.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.25 : 366.75 = 366.75 : x
  2. Step 2: Convert to fraction form
    269.25/366.75 = 366.75/x
  3. Step 3: Cross multiply
    269.25x = 366.75 × 366.75
  4. Step 4: Simplify right side
    269.25x = 134,505.56
  5. Step 5: Solve for x
    x = 134,505.56/269.25
  6. Step 6: Final answer
    x = 499.56

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.