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Finding the Third Proportional to 744.50 and 1,589

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Solution

The third proportional to 744.50 and 1,589 is: 3,391.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    744.50 : 1,589 = 1,589 : x
  2. Step 2: Convert to fraction form
    744.50/1,589 = 1,589/x
  3. Step 3: Cross multiply
    744.50x = 1,589 × 1,589
  4. Step 4: Simplify right side
    744.50x = 2,524,921
  5. Step 5: Solve for x
    x = 2,524,921/744.50
  6. Step 6: Final answer
    x = 3,391.43

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.