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Finding the Fourth Proportional to 66,270.88, 91,454.19 and 36,057.48

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Solution

The fourth proportional to 66,270.88, 91,454.19 and 36,057.48 is: 49,759.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,270.88 : 91,454.19 = 36,057.48 : x
  2. Step 2: Convert to fraction form
    66,270.88/91,454.19 = 36,057.48/x
  3. Step 3: Cross multiply
    66,270.88x = 91,454.19 × 36,057.48
  4. Step 4: Simplify right side
    66,270.88x = 3,297,607,507.30
  5. Step 5: Solve for x
    x = 3,297,607,507.30/66,270.88
  6. Step 6: Final answer
    x = 49,759.52

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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.