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Finding the Fourth Proportional to 4,420.80, 6,099.60 and 2,847

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Solution

The fourth proportional to 4,420.80, 6,099.60 and 2,847 is: 3,928.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,420.80 : 6,099.60 = 2,847 : x
  2. Step 2: Convert to fraction form
    4,420.80/6,099.60 = 2,847/x
  3. Step 3: Cross multiply
    4,420.80x = 6,099.60 × 2,847
  4. Step 4: Simplify right side
    4,420.80x = 17,365,561.20
  5. Step 5: Solve for x
    x = 17,365,561.20/4,420.80
  6. Step 6: Final answer
    x = 3,928.15

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