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Finding the Fourth Proportional to 3,257.86, 4,850.54 and 3,211.85

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Solution

The fourth proportional to 3,257.86, 4,850.54 and 3,211.85 is: 4,782.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,257.86 : 4,850.54 = 3,211.85 : x
  2. Step 2: Convert to fraction form
    3,257.86/4,850.54 = 3,211.85/x
  3. Step 3: Cross multiply
    3,257.86x = 4,850.54 × 3,211.85
  4. Step 4: Simplify right side
    3,257.86x = 15,579,206.90
  5. Step 5: Solve for x
    x = 15,579,206.90/3,257.86
  6. Step 6: Final answer
    x = 4,782.04

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.