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Finding the Fourth Proportional to 36,879.98, 55,326.04 and 11,926.31

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Solution

The fourth proportional to 36,879.98, 55,326.04 and 11,926.31 is: 17,891.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,879.98 : 55,326.04 = 11,926.31 : x
  2. Step 2: Convert to fraction form
    36,879.98/55,326.04 = 11,926.31/x
  3. Step 3: Cross multiply
    36,879.98x = 55,326.04 × 11,926.31
  4. Step 4: Simplify right side
    36,879.98x = 659,835,197.67
  5. Step 5: Solve for x
    x = 659,835,197.67/36,879.98
  6. Step 6: Final answer
    x = 17,891.42

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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.