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Finding the Fourth Proportional to 33,425.78, 50,104.90 and 20,954.55

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Solution

The fourth proportional to 33,425.78, 50,104.90 and 20,954.55 is: 31,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,425.78 : 50,104.90 = 20,954.55 : x
  2. Step 2: Convert to fraction form
    33,425.78/50,104.90 = 20,954.55/x
  3. Step 3: Cross multiply
    33,425.78x = 50,104.90 × 20,954.55
  4. Step 4: Simplify right side
    33,425.78x = 1,049,925,579.91
  5. Step 5: Solve for x
    x = 1,049,925,579.91/33,425.78
  6. Step 6: Final answer
    x = 31,410.65

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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.