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Finding the Fourth Proportional to 18,312.24, 27,469.43 and 7,067.65

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Solution

The fourth proportional to 18,312.24, 27,469.43 and 7,067.65 is: 10,601.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.24 : 27,469.43 = 7,067.65 : x
  2. Step 2: Convert to fraction form
    18,312.24/27,469.43 = 7,067.65/x
  3. Step 3: Cross multiply
    18,312.24x = 27,469.43 × 7,067.65
  4. Step 4: Simplify right side
    18,312.24x = 194,144,213.68
  5. Step 5: Solve for x
    x = 194,144,213.68/18,312.24
  6. Step 6: Final answer
    x = 10,601.88

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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.