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Finding the Third Proportional to 724.88 and 1,734.56

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Solution

The third proportional to 724.88 and 1,734.56 is: 4,150.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    724.88 : 1,734.56 = 1,734.56 : x
  2. Step 2: Convert to fraction form
    724.88/1,734.56 = 1,734.56/x
  3. Step 3: Cross multiply
    724.88x = 1,734.56 × 1,734.56
  4. Step 4: Simplify right side
    724.88x = 3,008,707.07
  5. Step 5: Solve for x
    x = 3,008,707.07/724.88
  6. Step 6: Final answer
    x = 4,150.66

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.