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Finding the Fourth Proportional to 6,366.80, 9,550.20 and 4,293.20

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Solution

The fourth proportional to 6,366.80, 9,550.20 and 4,293.20 is: 6,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,366.80 : 9,550.20 = 4,293.20 : x
  2. Step 2: Convert to fraction form
    6,366.80/9,550.20 = 4,293.20/x
  3. Step 3: Cross multiply
    6,366.80x = 9,550.20 × 4,293.20
  4. Step 4: Simplify right side
    6,366.80x = 41,000,918.64
  5. Step 5: Solve for x
    x = 41,000,918.64/6,366.80
  6. Step 6: Final answer
    x = 6,439.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.