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Finding the Third Proportional to 249.75 and 460.69

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Solution

The third proportional to 249.75 and 460.69 is: 849.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.75 : 460.69 = 460.69 : x
  2. Step 2: Convert to fraction form
    249.75/460.69 = 460.69/x
  3. Step 3: Cross multiply
    249.75x = 460.69 × 460.69
  4. Step 4: Simplify right side
    249.75x = 212,232.97
  5. Step 5: Solve for x
    x = 212,232.97/249.75
  6. Step 6: Final answer
    x = 849.78

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.