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Finding the Fourth Proportional to 66,544.82, 91,833.29 and 36,331.41

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Solution

The fourth proportional to 66,544.82, 91,833.29 and 36,331.41 is: 50,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,544.82 : 91,833.29 = 36,331.41 : x
  2. Step 2: Convert to fraction form
    66,544.82/91,833.29 = 36,331.41/x
  3. Step 3: Cross multiply
    66,544.82x = 91,833.29 × 36,331.41
  4. Step 4: Simplify right side
    66,544.82x = 3,336,432,910.64
  5. Step 5: Solve for x
    x = 3,336,432,910.64/66,544.82
  6. Step 6: Final answer
    x = 50,138.13

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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.