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Finding the Fourth Proportional to 18,560.85, 27,834.78 and 8,704.77

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Solution

The fourth proportional to 18,560.85, 27,834.78 and 8,704.77 is: 13,054.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,560.85 : 27,834.78 = 8,704.77 : x
  2. Step 2: Convert to fraction form
    18,560.85/27,834.78 = 8,704.77/x
  3. Step 3: Cross multiply
    18,560.85x = 27,834.78 × 8,704.77
  4. Step 4: Simplify right side
    18,560.85x = 242,295,357.90
  5. Step 5: Solve for x
    x = 242,295,357.90/18,560.85
  6. Step 6: Final answer
    x = 13,054.11

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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.