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Finding the Fourth Proportional to 5,414.99, 8,119.71 and 2,490.75

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Solution

The fourth proportional to 5,414.99, 8,119.71 and 2,490.75 is: 3,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.99 : 8,119.71 = 2,490.75 : x
  2. Step 2: Convert to fraction form
    5,414.99/8,119.71 = 2,490.75/x
  3. Step 3: Cross multiply
    5,414.99x = 8,119.71 × 2,490.75
  4. Step 4: Simplify right side
    5,414.99x = 20,224,167.68
  5. Step 5: Solve for x
    x = 20,224,167.68/5,414.99
  6. Step 6: Final answer
    x = 3,734.85

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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.