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Finding the Fourth Proportional to 66,441.67, 91,687.51 and 36,227.59

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Solution

The fourth proportional to 66,441.67, 91,687.51 and 36,227.59 is: 49,992.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,441.67 : 91,687.51 = 36,227.59 : x
  2. Step 2: Convert to fraction form
    66,441.67/91,687.51 = 36,227.59/x
  3. Step 3: Cross multiply
    66,441.67x = 91,687.51 × 36,227.59
  4. Step 4: Simplify right side
    66,441.67x = 3,321,617,336.47
  5. Step 5: Solve for x
    x = 3,321,617,336.47/66,441.67
  6. Step 6: Final answer
    x = 49,992.99

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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.