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Finding the Fourth Proportional to 3,367.85, 5,044.82 and 1,976.99

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Solution

The fourth proportional to 3,367.85, 5,044.82 and 1,976.99 is: 2,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,367.85 : 5,044.82 = 1,976.99 : x
  2. Step 2: Convert to fraction form
    3,367.85/5,044.82 = 1,976.99/x
  3. Step 3: Cross multiply
    3,367.85x = 5,044.82 × 1,976.99
  4. Step 4: Simplify right side
    3,367.85x = 9,973,523.58
  5. Step 5: Solve for x
    x = 9,973,523.58/3,367.85
  6. Step 6: Final answer
    x = 2,961.40

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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.