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Finding the Fourth Proportional to 4,889.62, 6,747.76 and 2,793.76

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Solution

The fourth proportional to 4,889.62, 6,747.76 and 2,793.76 is: 3,855.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.62 : 6,747.76 = 2,793.76 : x
  2. Step 2: Convert to fraction form
    4,889.62/6,747.76 = 2,793.76/x
  3. Step 3: Cross multiply
    4,889.62x = 6,747.76 × 2,793.76
  4. Step 4: Simplify right side
    4,889.62x = 18,851,621.98
  5. Step 5: Solve for x
    x = 18,851,621.98/4,889.62
  6. Step 6: Final answer
    x = 3,855.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.