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Finding the Fourth Proportional to 67,099.80, 100,662.39 and 22,123.74

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Solution

The fourth proportional to 67,099.80, 100,662.39 and 22,123.74 is: 33,189.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,099.80 : 100,662.39 = 22,123.74 : x
  2. Step 2: Convert to fraction form
    67,099.80/100,662.39 = 22,123.74/x
  3. Step 3: Cross multiply
    67,099.80x = 100,662.39 × 22,123.74
  4. Step 4: Simplify right side
    67,099.80x = 2,227,028,544.14
  5. Step 5: Solve for x
    x = 2,227,028,544.14/67,099.80
  6. Step 6: Final answer
    x = 33,189.79

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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.