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Finding the Fourth Proportional to 18,408.10, 27,611.49 and 5,928.97

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Solution

The fourth proportional to 18,408.10, 27,611.49 and 5,928.97 is: 8,893.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,408.10 : 27,611.49 = 5,928.97 : x
  2. Step 2: Convert to fraction form
    18,408.10/27,611.49 = 5,928.97/x
  3. Step 3: Cross multiply
    18,408.10x = 27,611.49 × 5,928.97
  4. Step 4: Simplify right side
    18,408.10x = 163,707,695.87
  5. Step 5: Solve for x
    x = 163,707,695.87/18,408.10
  6. Step 6: Final answer
    x = 8,893.24

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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.