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Finding the Fourth Proportional to 3,255.26, 4,882.86 and 790.08

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Solution

The fourth proportional to 3,255.26, 4,882.86 and 790.08 is: 1,185.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.26 : 4,882.86 = 790.08 : x
  2. Step 2: Convert to fraction form
    3,255.26/4,882.86 = 790.08/x
  3. Step 3: Cross multiply
    3,255.26x = 4,882.86 × 790.08
  4. Step 4: Simplify right side
    3,255.26x = 3,857,850.03
  5. Step 5: Solve for x
    x = 3,857,850.03/3,255.26
  6. Step 6: Final answer
    x = 1,185.11

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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.