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Finding the Fourth Proportional to 8,261.47, 12,392.22 and 6,797.55

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Solution

The fourth proportional to 8,261.47, 12,392.22 and 6,797.55 is: 10,196.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.47 : 12,392.22 = 6,797.55 : x
  2. Step 2: Convert to fraction form
    8,261.47/12,392.22 = 6,797.55/x
  3. Step 3: Cross multiply
    8,261.47x = 12,392.22 × 6,797.55
  4. Step 4: Simplify right side
    8,261.47x = 84,236,678.59
  5. Step 5: Solve for x
    x = 84,236,678.59/8,261.47
  6. Step 6: Final answer
    x = 10,196.33

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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.