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Finding the Fourth Proportional to 8,591.26, 12,876.90 and 7,033.90

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Solution

The fourth proportional to 8,591.26, 12,876.90 and 7,033.90 is: 10,542.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.26 : 12,876.90 = 7,033.90 : x
  2. Step 2: Convert to fraction form
    8,591.26/12,876.90 = 7,033.90/x
  3. Step 3: Cross multiply
    8,591.26x = 12,876.90 × 7,033.90
  4. Step 4: Simplify right side
    8,591.26x = 90,574,826.91
  5. Step 5: Solve for x
    x = 90,574,826.91/8,591.26
  6. Step 6: Final answer
    x = 10,542.67

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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.