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Finding the Fourth Proportional to 57,080.75, 78,790.87 and 33,227.47

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Solution

The fourth proportional to 57,080.75, 78,790.87 and 33,227.47 is: 45,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,080.75 : 78,790.87 = 33,227.47 : x
  2. Step 2: Convert to fraction form
    57,080.75/78,790.87 = 33,227.47/x
  3. Step 3: Cross multiply
    57,080.75x = 78,790.87 × 33,227.47
  4. Step 4: Simplify right side
    57,080.75x = 2,618,021,103.06
  5. Step 5: Solve for x
    x = 2,618,021,103.06/57,080.75
  6. Step 6: Final answer
    x = 45,865.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.