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Finding the Fourth Proportional to 11,861.87, 17,793.86 and 3,096.86

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Solution

The fourth proportional to 11,861.87, 17,793.86 and 3,096.86 is: 4,645.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.87 : 17,793.86 = 3,096.86 : x
  2. Step 2: Convert to fraction form
    11,861.87/17,793.86 = 3,096.86/x
  3. Step 3: Cross multiply
    11,861.87x = 17,793.86 × 3,096.86
  4. Step 4: Simplify right side
    11,861.87x = 55,104,988.83
  5. Step 5: Solve for x
    x = 55,104,988.83/11,861.87
  6. Step 6: Final answer
    x = 4,645.56

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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.