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Finding the Fourth Proportional to 6,919.50, 9,553.23 and 4,439.82

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Solution

The fourth proportional to 6,919.50, 9,553.23 and 4,439.82 is: 6,129.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.50 : 9,553.23 = 4,439.82 : x
  2. Step 2: Convert to fraction form
    6,919.50/9,553.23 = 4,439.82/x
  3. Step 3: Cross multiply
    6,919.50x = 9,553.23 × 4,439.82
  4. Step 4: Simplify right side
    6,919.50x = 42,414,621.62
  5. Step 5: Solve for x
    x = 42,414,621.62/6,919.50
  6. Step 6: Final answer
    x = 6,129.72

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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.