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Finding the Fourth Proportional to 18,198.30, 27,298.17 and 17,940.54

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Solution

The fourth proportional to 18,198.30, 27,298.17 and 17,940.54 is: 26,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,198.30 : 27,298.17 = 17,940.54 : x
  2. Step 2: Convert to fraction form
    18,198.30/27,298.17 = 17,940.54/x
  3. Step 3: Cross multiply
    18,198.30x = 27,298.17 × 17,940.54
  4. Step 4: Simplify right side
    18,198.30x = 489,743,910.81
  5. Step 5: Solve for x
    x = 489,743,910.81/18,198.30
  6. Step 6: Final answer
    x = 26,911.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.