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Finding the Fourth Proportional to 4,818.60, 7,227.88 and 3,185.44

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Solution

The fourth proportional to 4,818.60, 7,227.88 and 3,185.44 is: 4,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.60 : 7,227.88 = 3,185.44 : x
  2. Step 2: Convert to fraction form
    4,818.60/7,227.88 = 3,185.44/x
  3. Step 3: Cross multiply
    4,818.60x = 7,227.88 × 3,185.44
  4. Step 4: Simplify right side
    4,818.60x = 23,023,978.07
  5. Step 5: Solve for x
    x = 23,023,978.07/4,818.60
  6. Step 6: Final answer
    x = 4,778.15

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