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Finding the Fourth Proportional to 18,610.44, 27,899.96 and 8,072.53

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Solution

The fourth proportional to 18,610.44, 27,899.96 and 8,072.53 is: 12,101.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.44 : 27,899.96 = 8,072.53 : x
  2. Step 2: Convert to fraction form
    18,610.44/27,899.96 = 8,072.53/x
  3. Step 3: Cross multiply
    18,610.44x = 27,899.96 × 8,072.53
  4. Step 4: Simplify right side
    18,610.44x = 225,223,184.26
  5. Step 5: Solve for x
    x = 225,223,184.26/18,610.44
  6. Step 6: Final answer
    x = 12,101.98

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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.