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Finding the Fourth Proportional to 4,410.40, 6,625.20 and 4,247.20

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Solution

The fourth proportional to 4,410.40, 6,625.20 and 4,247.20 is: 6,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,410.40 : 6,625.20 = 4,247.20 : x
  2. Step 2: Convert to fraction form
    4,410.40/6,625.20 = 4,247.20/x
  3. Step 3: Cross multiply
    4,410.40x = 6,625.20 × 4,247.20
  4. Step 4: Simplify right side
    4,410.40x = 28,138,549.44
  5. Step 5: Solve for x
    x = 28,138,549.44/4,410.40
  6. Step 6: Final answer
    x = 6,380.04

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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.