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Finding the Fourth Proportional to 52,940.99, 79,418.53 and 27,982.06

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Solution

The fourth proportional to 52,940.99, 79,418.53 and 27,982.06 is: 41,976.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,940.99 : 79,418.53 = 27,982.06 : x
  2. Step 2: Convert to fraction form
    52,940.99/79,418.53 = 27,982.06/x
  3. Step 3: Cross multiply
    52,940.99x = 79,418.53 × 27,982.06
  4. Step 4: Simplify right side
    52,940.99x = 2,222,293,750.60
  5. Step 5: Solve for x
    x = 2,222,293,750.60/52,940.99
  6. Step 6: Final answer
    x = 41,976.81

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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.