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Finding the Fourth Proportional to 3,379.57, 4,661.46 and 3,100.73

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Solution

The fourth proportional to 3,379.57, 4,661.46 and 3,100.73 is: 4,276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.57 : 4,661.46 = 3,100.73 : x
  2. Step 2: Convert to fraction form
    3,379.57/4,661.46 = 3,100.73/x
  3. Step 3: Cross multiply
    3,379.57x = 4,661.46 × 3,100.73
  4. Step 4: Simplify right side
    3,379.57x = 14,453,890.05
  5. Step 5: Solve for x
    x = 14,453,890.05/3,379.57
  6. Step 6: Final answer
    x = 4,276.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.