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Finding the Fourth Proportional to 27,184.98, 40,791.39 and 12,391.98

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Solution

The fourth proportional to 27,184.98, 40,791.39 and 12,391.98 is: 18,594.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,184.98 : 40,791.39 = 12,391.98 : x
  2. Step 2: Convert to fraction form
    27,184.98/40,791.39 = 12,391.98/x
  3. Step 3: Cross multiply
    27,184.98x = 40,791.39 × 12,391.98
  4. Step 4: Simplify right side
    27,184.98x = 505,486,089.05
  5. Step 5: Solve for x
    x = 505,486,089.05/27,184.98
  6. Step 6: Final answer
    x = 18,594.32

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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.