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Finding the Fourth Proportional to 21,786.43, 32,676.22 and 5,992.65

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Solution

The fourth proportional to 21,786.43, 32,676.22 and 5,992.65 is: 8,988.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,786.43 : 32,676.22 = 5,992.65 : x
  2. Step 2: Convert to fraction form
    21,786.43/32,676.22 = 5,992.65/x
  3. Step 3: Cross multiply
    21,786.43x = 32,676.22 × 5,992.65
  4. Step 4: Simplify right side
    21,786.43x = 195,816,956.44
  5. Step 5: Solve for x
    x = 195,816,956.44/21,786.43
  6. Step 6: Final answer
    x = 8,988.02

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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.