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Finding the Fourth Proportional to 34,660.04, 47,843.10 and 20,512.82

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Solution

The fourth proportional to 34,660.04, 47,843.10 and 20,512.82 is: 28,314.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,660.04 : 47,843.10 = 20,512.82 : x
  2. Step 2: Convert to fraction form
    34,660.04/47,843.10 = 20,512.82/x
  3. Step 3: Cross multiply
    34,660.04x = 47,843.10 × 20,512.82
  4. Step 4: Simplify right side
    34,660.04x = 981,396,898.54
  5. Step 5: Solve for x
    x = 981,396,898.54/34,660.04
  6. Step 6: Final answer
    x = 28,314.94

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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.