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Finding the Fourth Proportional to 18,883.93, 28,326.03 and 5,736.46

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Solution

The fourth proportional to 18,883.93, 28,326.03 and 5,736.46 is: 8,604.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,883.93 : 28,326.03 = 5,736.46 : x
  2. Step 2: Convert to fraction form
    18,883.93/28,326.03 = 5,736.46/x
  3. Step 3: Cross multiply
    18,883.93x = 28,326.03 × 5,736.46
  4. Step 4: Simplify right side
    18,883.93x = 162,491,138.05
  5. Step 5: Solve for x
    x = 162,491,138.05/18,883.93
  6. Step 6: Final answer
    x = 8,604.73

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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.