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Finding the Fourth Proportional to 8,591.70, 12,889.98 and 3,046.44

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Solution

The fourth proportional to 8,591.70, 12,889.98 and 3,046.44 is: 4,570.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.70 : 12,889.98 = 3,046.44 : x
  2. Step 2: Convert to fraction form
    8,591.70/12,889.98 = 3,046.44/x
  3. Step 3: Cross multiply
    8,591.70x = 12,889.98 × 3,046.44
  4. Step 4: Simplify right side
    8,591.70x = 39,268,550.67
  5. Step 5: Solve for x
    x = 39,268,550.67/8,591.70
  6. Step 6: Final answer
    x = 4,570.52

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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.