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Finding the Fourth Proportional to 28,835.87, 43,255.10 and 8,843.90

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Solution

The fourth proportional to 28,835.87, 43,255.10 and 8,843.90 is: 13,266.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,835.87 : 43,255.10 = 8,843.90 : x
  2. Step 2: Convert to fraction form
    28,835.87/43,255.10 = 8,843.90/x
  3. Step 3: Cross multiply
    28,835.87x = 43,255.10 × 8,843.90
  4. Step 4: Simplify right side
    28,835.87x = 382,543,584.72
  5. Step 5: Solve for x
    x = 382,543,584.72/28,835.87
  6. Step 6: Final answer
    x = 13,266.24

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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.