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Finding the Fourth Proportional to 5,917.62, 8,879.06 and 3,143.62

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Solution

The fourth proportional to 5,917.62, 8,879.06 and 3,143.62 is: 4,716.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,917.62 : 8,879.06 = 3,143.62 : x
  2. Step 2: Convert to fraction form
    5,917.62/8,879.06 = 3,143.62/x
  3. Step 3: Cross multiply
    5,917.62x = 8,879.06 × 3,143.62
  4. Step 4: Simplify right side
    5,917.62x = 27,912,376.26
  5. Step 5: Solve for x
    x = 27,912,376.26/5,917.62
  6. Step 6: Final answer
    x = 4,716.82

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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.