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Finding the Fourth Proportional to 18,992.73, 26,195.03 and 17,719.50

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Solution

The fourth proportional to 18,992.73, 26,195.03 and 17,719.50 is: 24,438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.73 : 26,195.03 = 17,719.50 : x
  2. Step 2: Convert to fraction form
    18,992.73/26,195.03 = 17,719.50/x
  3. Step 3: Cross multiply
    18,992.73x = 26,195.03 × 17,719.50
  4. Step 4: Simplify right side
    18,992.73x = 464,162,745.49
  5. Step 5: Solve for x
    x = 464,162,745.49/18,992.73
  6. Step 6: Final answer
    x = 24,438.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.