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Finding the Fourth Proportional to 26,591.26, 39,870.26 and 9,942.52

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Solution

The fourth proportional to 26,591.26, 39,870.26 and 9,942.52 is: 14,907.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,591.26 : 39,870.26 = 9,942.52 : x
  2. Step 2: Convert to fraction form
    26,591.26/39,870.26 = 9,942.52/x
  3. Step 3: Cross multiply
    26,591.26x = 39,870.26 × 9,942.52
  4. Step 4: Simplify right side
    26,591.26x = 396,410,857.46
  5. Step 5: Solve for x
    x = 396,410,857.46/26,591.26
  6. Step 6: Final answer
    x = 14,907.56

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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.