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Finding the Fourth Proportional to 6,308.37, 9,418.19 and 4,819.79

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Solution

The fourth proportional to 6,308.37, 9,418.19 and 4,819.79 is: 7,195.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,308.37 : 9,418.19 = 4,819.79 : x
  2. Step 2: Convert to fraction form
    6,308.37/9,418.19 = 4,819.79/x
  3. Step 3: Cross multiply
    6,308.37x = 9,418.19 × 4,819.79
  4. Step 4: Simplify right side
    6,308.37x = 45,393,626.79
  5. Step 5: Solve for x
    x = 45,393,626.79/6,308.37
  6. Step 6: Final answer
    x = 7,195.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.