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Finding the Fourth Proportional to 12,195.52, 18,295.52 and 4,799.82

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Solution

The fourth proportional to 12,195.52, 18,295.52 and 4,799.82 is: 7,200.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.52 : 18,295.52 = 4,799.82 : x
  2. Step 2: Convert to fraction form
    12,195.52/18,295.52 = 4,799.82/x
  3. Step 3: Cross multiply
    12,195.52x = 18,295.52 × 4,799.82
  4. Step 4: Simplify right side
    12,195.52x = 87,815,202.81
  5. Step 5: Solve for x
    x = 87,815,202.81/12,195.52
  6. Step 6: Final answer
    x = 7,200.61

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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.