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Finding the Fourth Proportional to 66,907.58, 100,273.88 and 27,418.46

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Solution

The fourth proportional to 66,907.58, 100,273.88 and 27,418.46 is: 41,091.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,907.58 : 100,273.88 = 27,418.46 : x
  2. Step 2: Convert to fraction form
    66,907.58/100,273.88 = 27,418.46/x
  3. Step 3: Cross multiply
    66,907.58x = 100,273.88 × 27,418.46
  4. Step 4: Simplify right side
    66,907.58x = 2,749,355,367.82
  5. Step 5: Solve for x
    x = 2,749,355,367.82/66,907.58
  6. Step 6: Final answer
    x = 41,091.84

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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.