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Finding the Third Proportional to 757.50 and 1,098

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Solution

The third proportional to 757.50 and 1,098 is: 1,591.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    757.50 : 1,098 = 1,098 : x
  2. Step 2: Convert to fraction form
    757.50/1,098 = 1,098/x
  3. Step 3: Cross multiply
    757.50x = 1,098 × 1,098
  4. Step 4: Simplify right side
    757.50x = 1,205,604
  5. Step 5: Solve for x
    x = 1,205,604/757.50
  6. Step 6: Final answer
    x = 1,591.56

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.