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Finding the Fourth Proportional to 36,891.96, 55,305.08 and 13,512.94

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Solution

The fourth proportional to 36,891.96, 55,305.08 and 13,512.94 is: 20,257.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,891.96 : 55,305.08 = 13,512.94 : x
  2. Step 2: Convert to fraction form
    36,891.96/55,305.08 = 13,512.94/x
  3. Step 3: Cross multiply
    36,891.96x = 55,305.08 × 13,512.94
  4. Step 4: Simplify right side
    36,891.96x = 747,334,227.74
  5. Step 5: Solve for x
    x = 747,334,227.74/36,891.96
  6. Step 6: Final answer
    x = 20,257.37

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.