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Finding the Fourth Proportional to 57,993.46, 86,968.85 and 20,033.07

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Solution

The fourth proportional to 57,993.46, 86,968.85 and 20,033.07 is: 30,042.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,993.46 : 86,968.85 = 20,033.07 : x
  2. Step 2: Convert to fraction form
    57,993.46/86,968.85 = 20,033.07/x
  3. Step 3: Cross multiply
    57,993.46x = 86,968.85 × 20,033.07
  4. Step 4: Simplify right side
    57,993.46x = 1,742,252,909.32
  5. Step 5: Solve for x
    x = 1,742,252,909.32/57,993.46
  6. Step 6: Final answer
    x = 30,042.23

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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.