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Finding the Fourth Proportional to 6,778.94, 9,354.66 and 3,794.90

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Solution

The fourth proportional to 6,778.94, 9,354.66 and 3,794.90 is: 5,236.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,778.94 : 9,354.66 = 3,794.90 : x
  2. Step 2: Convert to fraction form
    6,778.94/9,354.66 = 3,794.90/x
  3. Step 3: Cross multiply
    6,778.94x = 9,354.66 × 3,794.90
  4. Step 4: Simplify right side
    6,778.94x = 35,499,999.23
  5. Step 5: Solve for x
    x = 35,499,999.23/6,778.94
  6. Step 6: Final answer
    x = 5,236.81

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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.