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Finding the Fourth Proportional to 4,922.78, 6,793.26 and 2,798.42

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Solution

The fourth proportional to 4,922.78, 6,793.26 and 2,798.42 is: 3,861.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,922.78 : 6,793.26 = 2,798.42 : x
  2. Step 2: Convert to fraction form
    4,922.78/6,793.26 = 2,798.42/x
  3. Step 3: Cross multiply
    4,922.78x = 6,793.26 × 2,798.42
  4. Step 4: Simplify right side
    4,922.78x = 19,010,394.65
  5. Step 5: Solve for x
    x = 19,010,394.65/4,922.78
  6. Step 6: Final answer
    x = 3,861.72

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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.