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Finding the Fourth Proportional to 4,469.12, 6,704.22 and 2,159

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Solution

The fourth proportional to 4,469.12, 6,704.22 and 2,159 is: 3,238.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,469.12 : 6,704.22 = 2,159 : x
  2. Step 2: Convert to fraction form
    4,469.12/6,704.22 = 2,159/x
  3. Step 3: Cross multiply
    4,469.12x = 6,704.22 × 2,159
  4. Step 4: Simplify right side
    4,469.12x = 14,474,410.98
  5. Step 5: Solve for x
    x = 14,474,410.98/4,469.12
  6. Step 6: Final answer
    x = 3,238.76

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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.