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Finding the Fourth Proportional to 18,118.44, 27,174.78 and 5,806.44

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Solution

The fourth proportional to 18,118.44, 27,174.78 and 5,806.44 is: 8,708.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.44 : 27,174.78 = 5,806.44 : x
  2. Step 2: Convert to fraction form
    18,118.44/27,174.78 = 5,806.44/x
  3. Step 3: Cross multiply
    18,118.44x = 27,174.78 × 5,806.44
  4. Step 4: Simplify right side
    18,118.44x = 157,788,729.58
  5. Step 5: Solve for x
    x = 157,788,729.58/18,118.44
  6. Step 6: Final answer
    x = 8,708.74

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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.