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Finding the Fourth Proportional to 18,797.33, 28,195.92 and 7,704.02

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Solution

The fourth proportional to 18,797.33, 28,195.92 and 7,704.02 is: 11,555.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.33 : 28,195.92 = 7,704.02 : x
  2. Step 2: Convert to fraction form
    18,797.33/28,195.92 = 7,704.02/x
  3. Step 3: Cross multiply
    18,797.33x = 28,195.92 × 7,704.02
  4. Step 4: Simplify right side
    18,797.33x = 217,221,790.62
  5. Step 5: Solve for x
    x = 217,221,790.62/18,797.33
  6. Step 6: Final answer
    x = 11,555.99

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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.