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Finding the Fourth Proportional to 5,881.59, 8,115.48 and 3,994.68

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Solution

The fourth proportional to 5,881.59, 8,115.48 and 3,994.68 is: 5,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,881.59 : 8,115.48 = 3,994.68 : x
  2. Step 2: Convert to fraction form
    5,881.59/8,115.48 = 3,994.68/x
  3. Step 3: Cross multiply
    5,881.59x = 8,115.48 × 3,994.68
  4. Step 4: Simplify right side
    5,881.59x = 32,418,745.65
  5. Step 5: Solve for x
    x = 32,418,745.65/5,881.59
  6. Step 6: Final answer
    x = 5,511.90

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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.