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Finding the Fourth Proportional to 18,794.91, 28,192.33 and 8,262.42

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Solution

The fourth proportional to 18,794.91, 28,192.33 and 8,262.42 is: 12,393.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.91 : 28,192.33 = 8,262.42 : x
  2. Step 2: Convert to fraction form
    18,794.91/28,192.33 = 8,262.42/x
  3. Step 3: Cross multiply
    18,794.91x = 28,192.33 × 8,262.42
  4. Step 4: Simplify right side
    18,794.91x = 232,936,871.24
  5. Step 5: Solve for x
    x = 232,936,871.24/18,794.91
  6. Step 6: Final answer
    x = 12,393.61

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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.