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Finding the Fourth Proportional to 71,331.88, 106,940.94 and 33,873.16

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Solution

The fourth proportional to 71,331.88, 106,940.94 and 33,873.16 is: 50,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,331.88 : 106,940.94 = 33,873.16 : x
  2. Step 2: Convert to fraction form
    71,331.88/106,940.94 = 33,873.16/x
  3. Step 3: Cross multiply
    71,331.88x = 106,940.94 × 33,873.16
  4. Step 4: Simplify right side
    71,331.88x = 3,622,427,571.17
  5. Step 5: Solve for x
    x = 3,622,427,571.17/71,331.88
  6. Step 6: Final answer
    x = 50,782.73

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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.