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Finding the Fourth Proportional to 5,878.72, 8,819.30 and 2,591.74

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Solution

The fourth proportional to 5,878.72, 8,819.30 and 2,591.74 is: 3,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.72 : 8,819.30 = 2,591.74 : x
  2. Step 2: Convert to fraction form
    5,878.72/8,819.30 = 2,591.74/x
  3. Step 3: Cross multiply
    5,878.72x = 8,819.30 × 2,591.74
  4. Step 4: Simplify right side
    5,878.72x = 22,857,332.58
  5. Step 5: Solve for x
    x = 22,857,332.58/5,878.72
  6. Step 6: Final answer
    x = 3,888.15

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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.