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Finding the Fourth Proportional to 8,040.12, 12,040.62 and 5,568

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Solution

The fourth proportional to 8,040.12, 12,040.62 and 5,568 is: 8,338.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,040.12 : 12,040.62 = 5,568 : x
  2. Step 2: Convert to fraction form
    8,040.12/12,040.62 = 5,568/x
  3. Step 3: Cross multiply
    8,040.12x = 12,040.62 × 5,568
  4. Step 4: Simplify right side
    8,040.12x = 67,042,172.16
  5. Step 5: Solve for x
    x = 67,042,172.16/8,040.12
  6. Step 6: Final answer
    x = 8,338.45

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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.