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Finding the Fourth Proportional to 57,939.84, 86,879.52 and 26,796.96

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Solution

The fourth proportional to 57,939.84, 86,879.52 and 26,796.96 is: 40,181.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,939.84 : 86,879.52 = 26,796.96 : x
  2. Step 2: Convert to fraction form
    57,939.84/86,879.52 = 26,796.96/x
  3. Step 3: Cross multiply
    57,939.84x = 86,879.52 × 26,796.96
  4. Step 4: Simplify right side
    57,939.84x = 2,328,107,022.26
  5. Step 5: Solve for x
    x = 2,328,107,022.26/57,939.84
  6. Step 6: Final answer
    x = 40,181.45

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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.