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Finding the Fourth Proportional to 66,540.98, 91,827.94 and 36,327.57

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Solution

The fourth proportional to 66,540.98, 91,827.94 and 36,327.57 is: 50,132.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,540.98 : 91,827.94 = 36,327.57 : x
  2. Step 2: Convert to fraction form
    66,540.98/91,827.94 = 36,327.57/x
  3. Step 3: Cross multiply
    66,540.98x = 91,827.94 × 36,327.57
  4. Step 4: Simplify right side
    66,540.98x = 3,335,885,759.37
  5. Step 5: Solve for x
    x = 3,335,885,759.37/66,540.98
  6. Step 6: Final answer
    x = 50,132.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.