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Finding the Fourth Proportional to 4,618.85, 6,913.22 and 3,385.98

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Solution

The fourth proportional to 4,618.85, 6,913.22 and 3,385.98 is: 5,067.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,618.85 : 6,913.22 = 3,385.98 : x
  2. Step 2: Convert to fraction form
    4,618.85/6,913.22 = 3,385.98/x
  3. Step 3: Cross multiply
    4,618.85x = 6,913.22 × 3,385.98
  4. Step 4: Simplify right side
    4,618.85x = 23,408,007.73
  5. Step 5: Solve for x
    x = 23,408,007.73/4,618.85
  6. Step 6: Final answer
    x = 5,067.94

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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.