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Finding the Fourth Proportional to 3,281.87, 4,916.99 and 2,238.49

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Solution

The fourth proportional to 3,281.87, 4,916.99 and 2,238.49 is: 3,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.87 : 4,916.99 = 2,238.49 : x
  2. Step 2: Convert to fraction form
    3,281.87/4,916.99 = 2,238.49/x
  3. Step 3: Cross multiply
    3,281.87x = 4,916.99 × 2,238.49
  4. Step 4: Simplify right side
    3,281.87x = 11,006,613.88
  5. Step 5: Solve for x
    x = 11,006,613.88/3,281.87
  6. Step 6: Final answer
    x = 3,353.77

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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.