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Finding the Fourth Proportional to 3,859.98, 5,789.88 and 3,757.46

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Solution

The fourth proportional to 3,859.98, 5,789.88 and 3,757.46 is: 5,636.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.98 : 5,789.88 = 3,757.46 : x
  2. Step 2: Convert to fraction form
    3,859.98/5,789.88 = 3,757.46/x
  3. Step 3: Cross multiply
    3,859.98x = 5,789.88 × 3,757.46
  4. Step 4: Simplify right side
    3,859.98x = 21,755,249.36
  5. Step 5: Solve for x
    x = 21,755,249.36/3,859.98
  6. Step 6: Final answer
    x = 5,636.11

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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.