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Finding the Fourth Proportional to 2,697.77, 4,046.66 and 749.97

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Solution

The fourth proportional to 2,697.77, 4,046.66 and 749.97 is: 1,124.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,697.77 : 4,046.66 = 749.97 : x
  2. Step 2: Convert to fraction form
    2,697.77/4,046.66 = 749.97/x
  3. Step 3: Cross multiply
    2,697.77x = 4,046.66 × 749.97
  4. Step 4: Simplify right side
    2,697.77x = 3,034,872.66
  5. Step 5: Solve for x
    x = 3,034,872.66/2,697.77
  6. Step 6: Final answer
    x = 1,124.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.