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Finding the Fourth Proportional to 66,857.88, 100,249.83 and 27,442.74

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Solution

The fourth proportional to 66,857.88, 100,249.83 and 27,442.74 is: 41,148.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,857.88 : 100,249.83 = 27,442.74 : x
  2. Step 2: Convert to fraction form
    66,857.88/100,249.83 = 27,442.74/x
  3. Step 3: Cross multiply
    66,857.88x = 100,249.83 × 27,442.74
  4. Step 4: Simplify right side
    66,857.88x = 2,751,130,019.73
  5. Step 5: Solve for x
    x = 2,751,130,019.73/66,857.88
  6. Step 6: Final answer
    x = 41,148.93

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1.5x scale

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.