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Finding the Fourth Proportional to 18,550.80, 27,793.80 and 15,634.80

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Solution

The fourth proportional to 18,550.80, 27,793.80 and 15,634.80 is: 23,424.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.80 : 27,793.80 = 15,634.80 : x
  2. Step 2: Convert to fraction form
    18,550.80/27,793.80 = 15,634.80/x
  3. Step 3: Cross multiply
    18,550.80x = 27,793.80 × 15,634.80
  4. Step 4: Simplify right side
    18,550.80x = 434,550,504.24
  5. Step 5: Solve for x
    x = 434,550,504.24/18,550.80
  6. Step 6: Final answer
    x = 23,424.89

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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.