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Finding the Fourth Proportional to 18,362.88, 27,540.06 and 8,993.55

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Solution

The fourth proportional to 18,362.88, 27,540.06 and 8,993.55 is: 13,488.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362.88 : 27,540.06 = 8,993.55 : x
  2. Step 2: Convert to fraction form
    18,362.88/27,540.06 = 8,993.55/x
  3. Step 3: Cross multiply
    18,362.88x = 27,540.06 × 8,993.55
  4. Step 4: Simplify right side
    18,362.88x = 247,682,906.61
  5. Step 5: Solve for x
    x = 247,682,906.61/18,362.88
  6. Step 6: Final answer
    x = 13,488.24

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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.