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Finding the Fourth Proportional to 3,793.50, 5,686.00 and 2,866.05

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Solution

The fourth proportional to 3,793.50, 5,686.00 and 2,866.05 is: 4,295.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,793.50 : 5,686.00 = 2,866.05 : x
  2. Step 2: Convert to fraction form
    3,793.50/5,686.00 = 2,866.05/x
  3. Step 3: Cross multiply
    3,793.50x = 5,686.00 × 2,866.05
  4. Step 4: Simplify right side
    3,793.50x = 16,296,353.13
  5. Step 5: Solve for x
    x = 16,296,353.13/3,793.50
  6. Step 6: Final answer
    x = 4,295.86

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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.