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Finding the Fourth Proportional to 8,043.20, 12,055.20 and 3,363.20

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Solution

The fourth proportional to 8,043.20, 12,055.20 and 3,363.20 is: 5,040.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,043.20 : 12,055.20 = 3,363.20 : x
  2. Step 2: Convert to fraction form
    8,043.20/12,055.20 = 3,363.20/x
  3. Step 3: Cross multiply
    8,043.20x = 12,055.20 × 3,363.20
  4. Step 4: Simplify right side
    8,043.20x = 40,544,048.64
  5. Step 5: Solve for x
    x = 40,544,048.64/8,043.20
  6. Step 6: Final answer
    x = 5,040.79

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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.