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Finding the Third Proportional to 750 and 1,591

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Solution

The third proportional to 750 and 1,591 is: 3,375.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    750 : 1,591 = 1,591 : x
  2. Step 2: Convert to fraction form
    750/1,591 = 1,591/x
  3. Step 3: Cross multiply
    750x = 1,591 × 1,591
  4. Step 4: Simplify right side
    750x = 2,531,281
  5. Step 5: Solve for x
    x = 2,531,281/750
  6. Step 6: Final answer
    x = 3,375.04

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.