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Finding the Third Proportional to 663.75 and 932.63

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Solution

The third proportional to 663.75 and 932.63 is: 1,310.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    663.75 : 932.63 = 932.63 : x
  2. Step 2: Convert to fraction form
    663.75/932.63 = 932.63/x
  3. Step 3: Cross multiply
    663.75x = 932.63 × 932.63
  4. Step 4: Simplify right side
    663.75x = 869,789.39
  5. Step 5: Solve for x
    x = 869,789.39/663.75
  6. Step 6: Final answer
    x = 1,310.42

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.