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Finding the Fourth Proportional to 18,044.56, 27,070.93 and 8,186.65

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Solution

The fourth proportional to 18,044.56, 27,070.93 and 8,186.65 is: 12,281.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,044.56 : 27,070.93 = 8,186.65 : x
  2. Step 2: Convert to fraction form
    18,044.56/27,070.93 = 8,186.65/x
  3. Step 3: Cross multiply
    18,044.56x = 27,070.93 × 8,186.65
  4. Step 4: Simplify right side
    18,044.56x = 221,620,229.08
  5. Step 5: Solve for x
    x = 221,620,229.08/18,044.56
  6. Step 6: Final answer
    x = 12,281.83

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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.