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Finding the Fourth Proportional to 33,912.40, 50,892.90 and 19,105.60

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Solution

The fourth proportional to 33,912.40, 50,892.90 and 19,105.60 is: 28,672.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,912.40 : 50,892.90 = 19,105.60 : x
  2. Step 2: Convert to fraction form
    33,912.40/50,892.90 = 19,105.60/x
  3. Step 3: Cross multiply
    33,912.40x = 50,892.90 × 19,105.60
  4. Step 4: Simplify right side
    33,912.40x = 972,339,390.24
  5. Step 5: Solve for x
    x = 972,339,390.24/33,912.40
  6. Step 6: Final answer
    x = 28,672.09

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1.5x scale

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.