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Finding the Fourth Proportional to 6,338.85, 8,747.46 and 3,506.15

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Solution

The fourth proportional to 6,338.85, 8,747.46 and 3,506.15 is: 4,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,338.85 : 8,747.46 = 3,506.15 : x
  2. Step 2: Convert to fraction form
    6,338.85/8,747.46 = 3,506.15/x
  3. Step 3: Cross multiply
    6,338.85x = 8,747.46 × 3,506.15
  4. Step 4: Simplify right side
    6,338.85x = 30,669,906.88
  5. Step 5: Solve for x
    x = 30,669,906.88/6,338.85
  6. Step 6: Final answer
    x = 4,838.40

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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.