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Finding the Fourth Proportional to 8,601.68, 12,891.72 and 3,050.48

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Solution

The fourth proportional to 8,601.68, 12,891.72 and 3,050.48 is: 4,571.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.68 : 12,891.72 = 3,050.48 : x
  2. Step 2: Convert to fraction form
    8,601.68/12,891.72 = 3,050.48/x
  3. Step 3: Cross multiply
    8,601.68x = 12,891.72 × 3,050.48
  4. Step 4: Simplify right side
    8,601.68x = 39,325,934.03
  5. Step 5: Solve for x
    x = 39,325,934.03/8,601.68
  6. Step 6: Final answer
    x = 4,571.89

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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.