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Finding the Fourth Proportional to 66,423.26, 99,640.80 and 22,050.42

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Solution

The fourth proportional to 66,423.26, 99,640.80 and 22,050.42 is: 33,077.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,423.26 : 99,640.80 = 22,050.42 : x
  2. Step 2: Convert to fraction form
    66,423.26/99,640.80 = 22,050.42/x
  3. Step 3: Cross multiply
    66,423.26x = 99,640.80 × 22,050.42
  4. Step 4: Simplify right side
    66,423.26x = 2,197,121,489.14
  5. Step 5: Solve for x
    x = 2,197,121,489.14/66,423.26
  6. Step 6: Final answer
    x = 33,077.59

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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.