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Finding the Fourth Proportional to 66,568.64, 99,843.84 and 22,194.41

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Solution

The fourth proportional to 66,568.64, 99,843.84 and 22,194.41 is: 33,288.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,568.64 : 99,843.84 = 22,194.41 : x
  2. Step 2: Convert to fraction form
    66,568.64/99,843.84 = 22,194.41/x
  3. Step 3: Cross multiply
    66,568.64x = 99,843.84 × 22,194.41
  4. Step 4: Simplify right side
    66,568.64x = 2,215,974,621.72
  5. Step 5: Solve for x
    x = 2,215,974,621.72/66,568.64
  6. Step 6: Final answer
    x = 33,288.57

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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.