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Finding the Fourth Proportional to 33,951.10, 50,906.40 and 20,812.90

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Solution

The fourth proportional to 33,951.10, 50,906.40 and 20,812.90 is: 31,206.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,951.10 : 50,906.40 = 20,812.90 : x
  2. Step 2: Convert to fraction form
    33,951.10/50,906.40 = 20,812.90/x
  3. Step 3: Cross multiply
    33,951.10x = 50,906.40 × 20,812.90
  4. Step 4: Simplify right side
    33,951.10x = 1,059,509,812.56
  5. Step 5: Solve for x
    x = 1,059,509,812.56/33,951.10
  6. Step 6: Final answer
    x = 31,206.94

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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.