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Finding the Fourth Proportional to 22,361.80, 33,542.14 and 5,721.88

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Solution

The fourth proportional to 22,361.80, 33,542.14 and 5,721.88 is: 8,582.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.80 : 33,542.14 = 5,721.88 : x
  2. Step 2: Convert to fraction form
    22,361.80/33,542.14 = 5,721.88/x
  3. Step 3: Cross multiply
    22,361.80x = 33,542.14 × 5,721.88
  4. Step 4: Simplify right side
    22,361.80x = 191,924,100.02
  5. Step 5: Solve for x
    x = 191,924,100.02/22,361.80
  6. Step 6: Final answer
    x = 8,582.68

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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.