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Finding the Fourth Proportional to 18,550.88, 27,825.84 and 5,406.88

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Solution

The fourth proportional to 18,550.88, 27,825.84 and 5,406.88 is: 8,110.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.88 : 27,825.84 = 5,406.88 : x
  2. Step 2: Convert to fraction form
    18,550.88/27,825.84 = 5,406.88/x
  3. Step 3: Cross multiply
    18,550.88x = 27,825.84 × 5,406.88
  4. Step 4: Simplify right side
    18,550.88x = 150,450,977.78
  5. Step 5: Solve for x
    x = 150,450,977.78/18,550.88
  6. Step 6: Final answer
    x = 8,110.18

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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.