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Finding the Fourth Proportional to 80,269.68, 120,412.44 and 27,672.24

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Solution

The fourth proportional to 80,269.68, 120,412.44 and 27,672.24 is: 41,511.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,269.68 : 120,412.44 = 27,672.24 : x
  2. Step 2: Convert to fraction form
    80,269.68/120,412.44 = 27,672.24/x
  3. Step 3: Cross multiply
    80,269.68x = 120,412.44 × 27,672.24
  4. Step 4: Simplify right side
    80,269.68x = 3,332,081,938.67
  5. Step 5: Solve for x
    x = 3,332,081,938.67/80,269.68
  6. Step 6: Final answer
    x = 41,511.09

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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.