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Finding the Third Proportional to 728 and 1,593

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Solution

The third proportional to 728 and 1,593 is: 3,485.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    728 : 1,593 = 1,593 : x
  2. Step 2: Convert to fraction form
    728/1,593 = 1,593/x
  3. Step 3: Cross multiply
    728x = 1,593 × 1,593
  4. Step 4: Simplify right side
    728x = 2,537,649
  5. Step 5: Solve for x
    x = 2,537,649/728
  6. Step 6: Final answer
    x = 3,485.78

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.