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Finding the Fourth Proportional to 66,495.88, 91,761.78 and 36,687.88

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Solution

The fourth proportional to 66,495.88, 91,761.78 and 36,687.88 is: 50,627.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,495.88 : 91,761.78 = 36,687.88 : x
  2. Step 2: Convert to fraction form
    66,495.88/91,761.78 = 36,687.88/x
  3. Step 3: Cross multiply
    66,495.88x = 91,761.78 × 36,687.88
  4. Step 4: Simplify right side
    66,495.88x = 3,366,545,173.23
  5. Step 5: Solve for x
    x = 3,366,545,173.23/66,495.88
  6. Step 6: Final answer
    x = 50,627.88

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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.