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Finding the Fourth Proportional to 18,735.39, 28,096.88 and 6,251.94

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Solution

The fourth proportional to 18,735.39, 28,096.88 and 6,251.94 is: 9,375.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.39 : 28,096.88 = 6,251.94 : x
  2. Step 2: Convert to fraction form
    18,735.39/28,096.88 = 6,251.94/x
  3. Step 3: Cross multiply
    18,735.39x = 28,096.88 × 6,251.94
  4. Step 4: Simplify right side
    18,735.39x = 175,659,976.69
  5. Step 5: Solve for x
    x = 175,659,976.69/18,735.39
  6. Step 6: Final answer
    x = 9,375.84

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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.