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Finding the Fourth Proportional to 55,940.59, 83,912.01 and 20,873.26

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Solution

The fourth proportional to 55,940.59, 83,912.01 and 20,873.26 is: 31,310.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,940.59 : 83,912.01 = 20,873.26 : x
  2. Step 2: Convert to fraction form
    55,940.59/83,912.01 = 20,873.26/x
  3. Step 3: Cross multiply
    55,940.59x = 83,912.01 × 20,873.26
  4. Step 4: Simplify right side
    55,940.59x = 1,751,517,201.85
  5. Step 5: Solve for x
    x = 1,751,517,201.85/55,940.59
  6. Step 6: Final answer
    x = 31,310.31

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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.