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Finding the Fourth Proportional to 3,453.78, 4,766.17 and 1,881.87

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Solution

The fourth proportional to 3,453.78, 4,766.17 and 1,881.87 is: 2,596.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.78 : 4,766.17 = 1,881.87 : x
  2. Step 2: Convert to fraction form
    3,453.78/4,766.17 = 1,881.87/x
  3. Step 3: Cross multiply
    3,453.78x = 4,766.17 × 1,881.87
  4. Step 4: Simplify right side
    3,453.78x = 8,969,302.93
  5. Step 5: Solve for x
    x = 8,969,302.93/3,453.78
  6. Step 6: Final answer
    x = 2,596.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.