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Finding the Fourth Proportional to 18,479.84, 27,727.86 and 6,796.40

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Solution

The fourth proportional to 18,479.84, 27,727.86 and 6,796.40 is: 10,197.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.84 : 27,727.86 = 6,796.40 : x
  2. Step 2: Convert to fraction form
    18,479.84/27,727.86 = 6,796.40/x
  3. Step 3: Cross multiply
    18,479.84x = 27,727.86 × 6,796.40
  4. Step 4: Simplify right side
    18,479.84x = 188,449,627.70
  5. Step 5: Solve for x
    x = 188,449,627.70/18,479.84
  6. Step 6: Final answer
    x = 10,197.58

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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.