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Finding the Fourth Proportional to 20,059.92, 30,091.86 and 6,910.56

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Solution

The fourth proportional to 20,059.92, 30,091.86 and 6,910.56 is: 10,366.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.92 : 30,091.86 = 6,910.56 : x
  2. Step 2: Convert to fraction form
    20,059.92/30,091.86 = 6,910.56/x
  3. Step 3: Cross multiply
    20,059.92x = 30,091.86 × 6,910.56
  4. Step 4: Simplify right side
    20,059.92x = 207,951,604.04
  5. Step 5: Solve for x
    x = 207,951,604.04/20,059.92
  6. Step 6: Final answer
    x = 10,366.52

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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.