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Finding the Fourth Proportional to 66,936.58, 100,405.17 and 22,563.70

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Solution

The fourth proportional to 66,936.58, 100,405.17 and 22,563.70 is: 33,845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,936.58 : 100,405.17 = 22,563.70 : x
  2. Step 2: Convert to fraction form
    66,936.58/100,405.17 = 22,563.70/x
  3. Step 3: Cross multiply
    66,936.58x = 100,405.17 × 22,563.70
  4. Step 4: Simplify right side
    66,936.58x = 2,265,511,883.32
  5. Step 5: Solve for x
    x = 2,265,511,883.32/66,936.58
  6. Step 6: Final answer
    x = 33,845.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.