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Finding the Fourth Proportional to 57,993.83, 86,969.41 and 20,033.44

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Solution

The fourth proportional to 57,993.83, 86,969.41 and 20,033.44 is: 30,042.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,993.83 : 86,969.41 = 20,033.44 : x
  2. Step 2: Convert to fraction form
    57,993.83/86,969.41 = 20,033.44/x
  3. Step 3: Cross multiply
    57,993.83x = 86,969.41 × 20,033.44
  4. Step 4: Simplify right side
    57,993.83x = 1,742,296,791.45
  5. Step 5: Solve for x
    x = 1,742,296,791.45/57,993.83
  6. Step 6: Final answer
    x = 30,042.79

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1.5x scale

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.