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Finding the Fourth Proportional to 18,173.88, 27,255.06 and 5,859

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Solution

The fourth proportional to 18,173.88, 27,255.06 and 5,859 is: 8,786.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,173.88 : 27,255.06 = 5,859 : x
  2. Step 2: Convert to fraction form
    18,173.88/27,255.06 = 5,859/x
  3. Step 3: Cross multiply
    18,173.88x = 27,255.06 × 5,859
  4. Step 4: Simplify right side
    18,173.88x = 159,687,396.54
  5. Step 5: Solve for x
    x = 159,687,396.54/18,173.88
  6. Step 6: Final answer
    x = 8,786.64

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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.