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Finding the Fourth Proportional to 5,879.60, 8,113.76 and 3,227

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Solution

The fourth proportional to 5,879.60, 8,113.76 and 3,227 is: 4,453.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.60 : 8,113.76 = 3,227 : x
  2. Step 2: Convert to fraction form
    5,879.60/8,113.76 = 3,227/x
  3. Step 3: Cross multiply
    5,879.60x = 8,113.76 × 3,227
  4. Step 4: Simplify right side
    5,879.60x = 26,183,103.52
  5. Step 5: Solve for x
    x = 26,183,103.52/5,879.60
  6. Step 6: Final answer
    x = 4,453.21

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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.