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Finding the Fourth Proportional to 4,065.60, 6,091.20 and 3,604.80

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Solution

The fourth proportional to 4,065.60, 6,091.20 and 3,604.80 is: 5,400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,065.60 : 6,091.20 = 3,604.80 : x
  2. Step 2: Convert to fraction form
    4,065.60/6,091.20 = 3,604.80/x
  3. Step 3: Cross multiply
    4,065.60x = 6,091.20 × 3,604.80
  4. Step 4: Simplify right side
    4,065.60x = 21,957,557.76
  5. Step 5: Solve for x
    x = 21,957,557.76/4,065.60
  6. Step 6: Final answer
    x = 5,400.82

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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.