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Finding the Fourth Proportional to 27,191.80, 40,766.10 and 14,879.80

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Solution

The fourth proportional to 27,191.80, 40,766.10 and 14,879.80 is: 22,307.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,191.80 : 40,766.10 = 14,879.80 : x
  2. Step 2: Convert to fraction form
    27,191.80/40,766.10 = 14,879.80/x
  3. Step 3: Cross multiply
    27,191.80x = 40,766.10 × 14,879.80
  4. Step 4: Simplify right side
    27,191.80x = 606,591,414.78
  5. Step 5: Solve for x
    x = 606,591,414.78/27,191.80
  6. Step 6: Final answer
    x = 22,307.88

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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.