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Finding the Third Proportional to 1,755 and 2,711.25

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Solution

The third proportional to 1,755 and 2,711.25 is: 4,188.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755 : 2,711.25 = 2,711.25 : x
  2. Step 2: Convert to fraction form
    1,755/2,711.25 = 2,711.25/x
  3. Step 3: Cross multiply
    1,755x = 2,711.25 × 2,711.25
  4. Step 4: Simplify right side
    1,755x = 7,350,876.56
  5. Step 5: Solve for x
    x = 7,350,876.56/1,755
  6. Step 6: Final answer
    x = 4,188.53

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.