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Finding the Fourth Proportional to 67,187.28, 100,843.22 and 33,930.76

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Solution

The fourth proportional to 67,187.28, 100,843.22 and 33,930.76 is: 50,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,187.28 : 100,843.22 = 33,930.76 : x
  2. Step 2: Convert to fraction form
    67,187.28/100,843.22 = 33,930.76/x
  3. Step 3: Cross multiply
    67,187.28x = 100,843.22 × 33,930.76
  4. Step 4: Simplify right side
    67,187.28x = 3,421,686,928.17
  5. Step 5: Solve for x
    x = 3,421,686,928.17/67,187.28
  6. Step 6: Final answer
    x = 50,927.60

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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.