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Finding the Fourth Proportional to 6,760.75, 9,336.26 and 6,392.61

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Solution

The fourth proportional to 6,760.75, 9,336.26 and 6,392.61 is: 8,827.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,760.75 : 9,336.26 = 6,392.61 : x
  2. Step 2: Convert to fraction form
    6,760.75/9,336.26 = 6,392.61/x
  3. Step 3: Cross multiply
    6,760.75x = 9,336.26 × 6,392.61
  4. Step 4: Simplify right side
    6,760.75x = 59,683,069.04
  5. Step 5: Solve for x
    x = 59,683,069.04/6,760.75
  6. Step 6: Final answer
    x = 8,827.88

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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.