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Finding the Fourth Proportional to 8,299.87, 12,449.90 and 4,834.69

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Solution

The fourth proportional to 8,299.87, 12,449.90 and 4,834.69 is: 7,252.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,299.87 : 12,449.90 = 4,834.69 : x
  2. Step 2: Convert to fraction form
    8,299.87/12,449.90 = 4,834.69/x
  3. Step 3: Cross multiply
    8,299.87x = 12,449.90 × 4,834.69
  4. Step 4: Simplify right side
    8,299.87x = 60,191,387.99
  5. Step 5: Solve for x
    x = 60,191,387.99/8,299.87
  6. Step 6: Final answer
    x = 7,252.09

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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.