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Finding the Fourth Proportional to 18,993.88, 28,482.54 and 5,839

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Solution

The fourth proportional to 18,993.88, 28,482.54 and 5,839 is: 8,755.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993.88 : 28,482.54 = 5,839 : x
  2. Step 2: Convert to fraction form
    18,993.88/28,482.54 = 5,839/x
  3. Step 3: Cross multiply
    18,993.88x = 28,482.54 × 5,839
  4. Step 4: Simplify right side
    18,993.88x = 166,309,551.06
  5. Step 5: Solve for x
    x = 166,309,551.06/18,993.88
  6. Step 6: Final answer
    x = 8,755.95

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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.