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Finding the Fourth Proportional to 8,754.85, 13,128.38 and 3,204.33

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Solution

The fourth proportional to 8,754.85, 13,128.38 and 3,204.33 is: 4,805.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.85 : 13,128.38 = 3,204.33 : x
  2. Step 2: Convert to fraction form
    8,754.85/13,128.38 = 3,204.33/x
  3. Step 3: Cross multiply
    8,754.85x = 13,128.38 × 3,204.33
  4. Step 4: Simplify right side
    8,754.85x = 42,067,608.65
  5. Step 5: Solve for x
    x = 42,067,608.65/8,754.85
  6. Step 6: Final answer
    x = 4,805.06

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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.