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Finding the Fourth Proportional to 17,231.91, 25,847.87 and 4,919.91

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Solution

The fourth proportional to 17,231.91, 25,847.87 and 4,919.91 is: 7,379.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,231.91 : 25,847.87 = 4,919.91 : x
  2. Step 2: Convert to fraction form
    17,231.91/25,847.87 = 4,919.91/x
  3. Step 3: Cross multiply
    17,231.91x = 25,847.87 × 4,919.91
  4. Step 4: Simplify right side
    17,231.91x = 127,169,169.49
  5. Step 5: Solve for x
    x = 127,169,169.49/17,231.91
  6. Step 6: Final answer
    x = 7,379.87

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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.