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Finding the Fourth Proportional to 33,911.40, 50,891.40 and 19,104.60

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Solution

The fourth proportional to 33,911.40, 50,891.40 and 19,104.60 is: 28,670.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,911.40 : 50,891.40 = 19,104.60 : x
  2. Step 2: Convert to fraction form
    33,911.40/50,891.40 = 19,104.60/x
  3. Step 3: Cross multiply
    33,911.40x = 50,891.40 × 19,104.60
  4. Step 4: Simplify right side
    33,911.40x = 972,259,840.44
  5. Step 5: Solve for x
    x = 972,259,840.44/33,911.40
  6. Step 6: Final answer
    x = 28,670.59

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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.