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Finding the Fourth Proportional to 17,986.70, 24,791.90 and 12,016.19

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Solution

The fourth proportional to 17,986.70, 24,791.90 and 12,016.19 is: 16,562.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,986.70 : 24,791.90 = 12,016.19 : x
  2. Step 2: Convert to fraction form
    17,986.70/24,791.90 = 12,016.19/x
  3. Step 3: Cross multiply
    17,986.70x = 24,791.90 × 12,016.19
  4. Step 4: Simplify right side
    17,986.70x = 297,904,182.76
  5. Step 5: Solve for x
    x = 297,904,182.76/17,986.70
  6. Step 6: Final answer
    x = 16,562.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.