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Finding the Fourth Proportional to 27,845.42, 41,759.92 and 8,118.68

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Solution

The fourth proportional to 27,845.42, 41,759.92 and 8,118.68 is: 12,175.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,845.42 : 41,759.92 = 8,118.68 : x
  2. Step 2: Convert to fraction form
    27,845.42/41,759.92 = 8,118.68/x
  3. Step 3: Cross multiply
    27,845.42x = 41,759.92 × 8,118.68
  4. Step 4: Simplify right side
    27,845.42x = 339,035,427.31
  5. Step 5: Solve for x
    x = 339,035,427.31/27,845.42
  6. Step 6: Final answer
    x = 12,175.63

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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.