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Finding the Fourth Proportional to 4,219.59, 6,329.40 and 2,487

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Solution

The fourth proportional to 4,219.59, 6,329.40 and 2,487 is: 3,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.59 : 6,329.40 = 2,487 : x
  2. Step 2: Convert to fraction form
    4,219.59/6,329.40 = 2,487/x
  3. Step 3: Cross multiply
    4,219.59x = 6,329.40 × 2,487
  4. Step 4: Simplify right side
    4,219.59x = 15,741,217.80
  5. Step 5: Solve for x
    x = 15,741,217.80/4,219.59
  6. Step 6: Final answer
    x = 3,730.51

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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.