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Finding the Fourth Proportional to 33,608.88, 46,375.20 and 20,178

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Solution

The fourth proportional to 33,608.88, 46,375.20 and 20,178 is: 27,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,608.88 : 46,375.20 = 20,178 : x
  2. Step 2: Convert to fraction form
    33,608.88/46,375.20 = 20,178/x
  3. Step 3: Cross multiply
    33,608.88x = 46,375.20 × 20,178
  4. Step 4: Simplify right side
    33,608.88x = 935,758,785.60
  5. Step 5: Solve for x
    x = 935,758,785.60/33,608.88
  6. Step 6: Final answer
    x = 27,842.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.