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Finding the Fourth Proportional to 18,288.99, 27,469.94 and 17,257.41

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Solution

The fourth proportional to 18,288.99, 27,469.94 and 17,257.41 is: 25,920.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288.99 : 27,469.94 = 17,257.41 : x
  2. Step 2: Convert to fraction form
    18,288.99/27,469.94 = 17,257.41/x
  3. Step 3: Cross multiply
    18,288.99x = 27,469.94 × 17,257.41
  4. Step 4: Simplify right side
    18,288.99x = 474,059,930.97
  5. Step 5: Solve for x
    x = 474,059,930.97/18,288.99
  6. Step 6: Final answer
    x = 25,920.51

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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.