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Finding the Fourth Proportional to 5,878.60, 8,819.93 and 2,591.22

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Solution

The fourth proportional to 5,878.60, 8,819.93 and 2,591.22 is: 3,887.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.60 : 8,819.93 = 2,591.22 : x
  2. Step 2: Convert to fraction form
    5,878.60/8,819.93 = 2,591.22/x
  3. Step 3: Cross multiply
    5,878.60x = 8,819.93 × 2,591.22
  4. Step 4: Simplify right side
    5,878.60x = 22,854,379.01
  5. Step 5: Solve for x
    x = 22,854,379.01/5,878.60
  6. Step 6: Final answer
    x = 3,887.72

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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.