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Finding the Fourth Proportional to 11,660.73, 16,091.99 and 6,355.54

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Solution

The fourth proportional to 11,660.73, 16,091.99 and 6,355.54 is: 8,770.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,660.73 : 16,091.99 = 6,355.54 : x
  2. Step 2: Convert to fraction form
    11,660.73/16,091.99 = 6,355.54/x
  3. Step 3: Cross multiply
    11,660.73x = 16,091.99 × 6,355.54
  4. Step 4: Simplify right side
    11,660.73x = 102,273,286.12
  5. Step 5: Solve for x
    x = 102,273,286.12/11,660.73
  6. Step 6: Final answer
    x = 8,770.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.