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Finding the Fourth Proportional to 18,468.44, 27,704.26 and 5,821.10

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Solution

The fourth proportional to 18,468.44, 27,704.26 and 5,821.10 is: 8,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.44 : 27,704.26 = 5,821.10 : x
  2. Step 2: Convert to fraction form
    18,468.44/27,704.26 = 5,821.10/x
  3. Step 3: Cross multiply
    18,468.44x = 27,704.26 × 5,821.10
  4. Step 4: Simplify right side
    18,468.44x = 161,269,267.89
  5. Step 5: Solve for x
    x = 161,269,267.89/18,468.44
  6. Step 6: Final answer
    x = 8,732.15

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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.