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Finding the Fourth Proportional to 13,356.52, 20,035.02 and 4,122.52

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Solution

The fourth proportional to 13,356.52, 20,035.02 and 4,122.52 is: 6,183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.52 : 20,035.02 = 4,122.52 : x
  2. Step 2: Convert to fraction form
    13,356.52/20,035.02 = 4,122.52/x
  3. Step 3: Cross multiply
    13,356.52x = 20,035.02 × 4,122.52
  4. Step 4: Simplify right side
    13,356.52x = 82,594,770.65
  5. Step 5: Solve for x
    x = 82,594,770.65/13,356.52
  6. Step 6: Final answer
    x = 6,183.85

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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.