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Finding the Fourth Proportional to 67,071.44, 100,584.12 and 25,530.32

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Solution

The fourth proportional to 67,071.44, 100,584.12 and 25,530.32 is: 38,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,071.44 : 100,584.12 = 25,530.32 : x
  2. Step 2: Convert to fraction form
    67,071.44/100,584.12 = 25,530.32/x
  3. Step 3: Cross multiply
    67,071.44x = 100,584.12 × 25,530.32
  4. Step 4: Simplify right side
    67,071.44x = 2,567,944,770.52
  5. Step 5: Solve for x
    x = 2,567,944,770.52/67,071.44
  6. Step 6: Final answer
    x = 38,286.71

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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.