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Finding the Fourth Proportional to 27,918.70, 41,881.92 and 8,194.48

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Solution

The fourth proportional to 27,918.70, 41,881.92 and 8,194.48 is: 12,292.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.70 : 41,881.92 = 8,194.48 : x
  2. Step 2: Convert to fraction form
    27,918.70/41,881.92 = 8,194.48/x
  3. Step 3: Cross multiply
    27,918.70x = 41,881.92 × 8,194.48
  4. Step 4: Simplify right side
    27,918.70x = 343,200,555.80
  5. Step 5: Solve for x
    x = 343,200,555.80/27,918.70
  6. Step 6: Final answer
    x = 12,292.86

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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.