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Finding the Fourth Proportional to 26,918.87, 40,375.22 and 7,199.01

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Solution

The fourth proportional to 26,918.87, 40,375.22 and 7,199.01 is: 10,797.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,918.87 : 40,375.22 = 7,199.01 : x
  2. Step 2: Convert to fraction form
    26,918.87/40,375.22 = 7,199.01/x
  3. Step 3: Cross multiply
    26,918.87x = 40,375.22 × 7,199.01
  4. Step 4: Simplify right side
    26,918.87x = 290,661,576.54
  5. Step 5: Solve for x
    x = 290,661,576.54/26,918.87
  6. Step 6: Final answer
    x = 10,797.69

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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.