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Finding the Fourth Proportional to 43,896.64, 65,691.86 and 35,906.80

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Solution

The fourth proportional to 43,896.64, 65,691.86 and 35,906.80 is: 53,734.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,896.64 : 65,691.86 = 35,906.80 : x
  2. Step 2: Convert to fraction form
    43,896.64/65,691.86 = 35,906.80/x
  3. Step 3: Cross multiply
    43,896.64x = 65,691.86 × 35,906.80
  4. Step 4: Simplify right side
    43,896.64x = 2,358,784,478.65
  5. Step 5: Solve for x
    x = 2,358,784,478.65/43,896.64
  6. Step 6: Final answer
    x = 53,734.97

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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.