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Finding the Fourth Proportional to 18,735.44, 28,096.88 and 6,251.99

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Solution

The fourth proportional to 18,735.44, 28,096.88 and 6,251.99 is: 9,375.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.44 : 28,096.88 = 6,251.99 : x
  2. Step 2: Convert to fraction form
    18,735.44/28,096.88 = 6,251.99/x
  3. Step 3: Cross multiply
    18,735.44x = 28,096.88 × 6,251.99
  4. Step 4: Simplify right side
    18,735.44x = 175,661,241.05
  5. Step 5: Solve for x
    x = 175,661,241.05/18,735.44
  6. Step 6: Final answer
    x = 9,375.88

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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.