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Finding the Fourth Proportional to 4,843.80, 7,265.70 and 3,691.80

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Solution

The fourth proportional to 4,843.80, 7,265.70 and 3,691.80 is: 5,537.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,843.80 : 7,265.70 = 3,691.80 : x
  2. Step 2: Convert to fraction form
    4,843.80/7,265.70 = 3,691.80/x
  3. Step 3: Cross multiply
    4,843.80x = 7,265.70 × 3,691.80
  4. Step 4: Simplify right side
    4,843.80x = 26,823,511.26
  5. Step 5: Solve for x
    x = 26,823,511.26/4,843.80
  6. Step 6: Final answer
    x = 5,537.70

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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.