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Finding the Fourth Proportional to 85,694.76, 128,541.33 and 33,067.44

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Solution

The fourth proportional to 85,694.76, 128,541.33 and 33,067.44 is: 49,600.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,694.76 : 128,541.33 = 33,067.44 : x
  2. Step 2: Convert to fraction form
    85,694.76/128,541.33 = 33,067.44/x
  3. Step 3: Cross multiply
    85,694.76x = 128,541.33 × 33,067.44
  4. Step 4: Simplify right side
    85,694.76x = 4,250,532,717.30
  5. Step 5: Solve for x
    x = 4,250,532,717.30/85,694.76
  6. Step 6: Final answer
    x = 49,600.85

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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.