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Finding the Third Proportional to 231.38 and 496.75

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Solution

The third proportional to 231.38 and 496.75 is: 1,066.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.38 : 496.75 = 496.75 : x
  2. Step 2: Convert to fraction form
    231.38/496.75 = 496.75/x
  3. Step 3: Cross multiply
    231.38x = 496.75 × 496.75
  4. Step 4: Simplify right side
    231.38x = 246,760.56
  5. Step 5: Solve for x
    x = 246,760.56/231.38
  6. Step 6: Final answer
    x = 1,066.50

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.