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Finding the Fourth Proportional to 67,131.36, 100,696.14 and 27,149.76

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Solution

The fourth proportional to 67,131.36, 100,696.14 and 27,149.76 is: 40,724.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,131.36 : 100,696.14 = 27,149.76 : x
  2. Step 2: Convert to fraction form
    67,131.36/100,696.14 = 27,149.76/x
  3. Step 3: Cross multiply
    67,131.36x = 100,696.14 × 27,149.76
  4. Step 4: Simplify right side
    67,131.36x = 2,733,876,033.93
  5. Step 5: Solve for x
    x = 2,733,876,033.93/67,131.36
  6. Step 6: Final answer
    x = 40,724.28

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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.