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Finding the Fourth Proportional to 8,108.56, 12,163.80 and 2,841.96

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Solution

The fourth proportional to 8,108.56, 12,163.80 and 2,841.96 is: 4,263.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.56 : 12,163.80 = 2,841.96 : x
  2. Step 2: Convert to fraction form
    8,108.56/12,163.80 = 2,841.96/x
  3. Step 3: Cross multiply
    8,108.56x = 12,163.80 × 2,841.96
  4. Step 4: Simplify right side
    8,108.56x = 34,569,033.05
  5. Step 5: Solve for x
    x = 34,569,033.05/8,108.56
  6. Step 6: Final answer
    x = 4,263.28

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1.5x scale

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.