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Finding the Fourth Proportional to 43,860.62, 65,797.41 and 12,691.82

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Solution

The fourth proportional to 43,860.62, 65,797.41 and 12,691.82 is: 19,039.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,860.62 : 65,797.41 = 12,691.82 : x
  2. Step 2: Convert to fraction form
    43,860.62/65,797.41 = 12,691.82/x
  3. Step 3: Cross multiply
    43,860.62x = 65,797.41 × 12,691.82
  4. Step 4: Simplify right side
    43,860.62x = 835,088,884.19
  5. Step 5: Solve for x
    x = 835,088,884.19/43,860.62
  6. Step 6: Final answer
    x = 19,039.61

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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.