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Finding the Fourth Proportional to 67,218.82, 100,843.40 and 22,240.07

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Solution

The fourth proportional to 67,218.82, 100,843.40 and 22,240.07 is: 33,365.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,218.82 : 100,843.40 = 22,240.07 : x
  2. Step 2: Convert to fraction form
    67,218.82/100,843.40 = 22,240.07/x
  3. Step 3: Cross multiply
    67,218.82x = 100,843.40 × 22,240.07
  4. Step 4: Simplify right side
    67,218.82x = 2,242,764,163.84
  5. Step 5: Solve for x
    x = 2,242,764,163.84/67,218.82
  6. Step 6: Final answer
    x = 33,365.12

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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.