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Finding the Fourth Proportional to 33,270.38, 45,921.03 and 21,361.94

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Solution

The fourth proportional to 33,270.38, 45,921.03 and 21,361.94 is: 29,484.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,270.38 : 45,921.03 = 21,361.94 : x
  2. Step 2: Convert to fraction form
    33,270.38/45,921.03 = 21,361.94/x
  3. Step 3: Cross multiply
    33,270.38x = 45,921.03 × 21,361.94
  4. Step 4: Simplify right side
    33,270.38x = 980,962,287.60
  5. Step 5: Solve for x
    x = 980,962,287.60/33,270.38
  6. Step 6: Final answer
    x = 29,484.55

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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.