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Finding the Fourth Proportional to 33,821,505.80, 50,732,258.70 and 21,728,270.60

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Solution

The fourth proportional to 33,821,505.80, 50,732,258.70 and 21,728,270.60 is: 32,592,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,821,505.80 : 50,732,258.70 = 21,728,270.60 : x
  2. Step 2: Convert to fraction form
    33,821,505.80/50,732,258.70 = 21,728,270.60/x
  3. Step 3: Cross multiply
    33,821,505.80x = 50,732,258.70 × 21,728,270.60
  4. Step 4: Simplify right side
    33,821,505.80x = 1,102,324,245,182,804.38
  5. Step 5: Solve for x
    x = 1,102,324,245,182,804.38/33,821,505.80
  6. Step 6: Final answer
    x = 32,592,405.90

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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.