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Finding the Fourth Proportional to 5,475.60, 7,548.12 and 3,981.15

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Solution

The fourth proportional to 5,475.60, 7,548.12 and 3,981.15 is: 5,488.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.60 : 7,548.12 = 3,981.15 : x
  2. Step 2: Convert to fraction form
    5,475.60/7,548.12 = 3,981.15/x
  3. Step 3: Cross multiply
    5,475.60x = 7,548.12 × 3,981.15
  4. Step 4: Simplify right side
    5,475.60x = 30,050,197.94
  5. Step 5: Solve for x
    x = 30,050,197.94/5,475.60
  6. Step 6: Final answer
    x = 5,488.02

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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.