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Finding the Fourth Proportional to 18,479.84, 27,724.13 and 5,998.91

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Solution

The fourth proportional to 18,479.84, 27,724.13 and 5,998.91 is: 8,999.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.84 : 27,724.13 = 5,998.91 : x
  2. Step 2: Convert to fraction form
    18,479.84/27,724.13 = 5,998.91/x
  3. Step 3: Cross multiply
    18,479.84x = 27,724.13 × 5,998.91
  4. Step 4: Simplify right side
    18,479.84x = 166,314,392.08
  5. Step 5: Solve for x
    x = 166,314,392.08/18,479.84
  6. Step 6: Final answer
    x = 8,999.77

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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.