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Finding the Fourth Proportional to 2,480.73, 3,719.32 and 1,163.74

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Solution

The fourth proportional to 2,480.73, 3,719.32 and 1,163.74 is: 1,744.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.73 : 3,719.32 = 1,163.74 : x
  2. Step 2: Convert to fraction form
    2,480.73/3,719.32 = 1,163.74/x
  3. Step 3: Cross multiply
    2,480.73x = 3,719.32 × 1,163.74
  4. Step 4: Simplify right side
    2,480.73x = 4,328,326.68
  5. Step 5: Solve for x
    x = 4,328,326.68/2,480.73
  6. Step 6: Final answer
    x = 1,744.78

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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.