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Finding the Fourth Proportional to 18,801.33, 28,204.97 and 7,556.65

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Solution

The fourth proportional to 18,801.33, 28,204.97 and 7,556.65 is: 11,336.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801.33 : 28,204.97 = 7,556.65 : x
  2. Step 2: Convert to fraction form
    18,801.33/28,204.97 = 7,556.65/x
  3. Step 3: Cross multiply
    18,801.33x = 28,204.97 × 7,556.65
  4. Step 4: Simplify right side
    18,801.33x = 213,135,229.70
  5. Step 5: Solve for x
    x = 213,135,229.70/18,801.33
  6. Step 6: Final answer
    x = 11,336.18

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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.