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Finding the Fourth Proportional to 5,544.60, 8,319.60 and 4,227.90

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Solution

The fourth proportional to 5,544.60, 8,319.60 and 4,227.90 is: 6,343.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,544.60 : 8,319.60 = 4,227.90 : x
  2. Step 2: Convert to fraction form
    5,544.60/8,319.60 = 4,227.90/x
  3. Step 3: Cross multiply
    5,544.60x = 8,319.60 × 4,227.90
  4. Step 4: Simplify right side
    5,544.60x = 35,174,436.84
  5. Step 5: Solve for x
    x = 35,174,436.84/5,544.60
  6. Step 6: Final answer
    x = 6,343.91

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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.