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Finding the Third Proportional to 331.13 and 759.56

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Solution

The third proportional to 331.13 and 759.56 is: 1,742.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    331.13 : 759.56 = 759.56 : x
  2. Step 2: Convert to fraction form
    331.13/759.56 = 759.56/x
  3. Step 3: Cross multiply
    331.13x = 759.56 × 759.56
  4. Step 4: Simplify right side
    331.13x = 576,935.19
  5. Step 5: Solve for x
    x = 576,935.19/331.13
  6. Step 6: Final answer
    x = 1,742.35

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Why These Related Problems?

These problems maintain the same ratio (2.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.