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Finding the Fourth Proportional to 27,891.90, 41,843.79 and 8,168.94

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Solution

The fourth proportional to 27,891.90, 41,843.79 and 8,168.94 is: 12,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,891.90 : 41,843.79 = 8,168.94 : x
  2. Step 2: Convert to fraction form
    27,891.90/41,843.79 = 8,168.94/x
  3. Step 3: Cross multiply
    27,891.90x = 41,843.79 × 8,168.94
  4. Step 4: Simplify right side
    27,891.90x = 341,819,409.88
  5. Step 5: Solve for x
    x = 341,819,409.88/27,891.90
  6. Step 6: Final answer
    x = 12,255.15

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1.5x scale

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.