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Finding the Fourth Proportional to 18,456.62, 27,668.51 and 6,767.10

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Solution

The fourth proportional to 18,456.62, 27,668.51 and 6,767.10 is: 10,144.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.62 : 27,668.51 = 6,767.10 : x
  2. Step 2: Convert to fraction form
    18,456.62/27,668.51 = 6,767.10/x
  3. Step 3: Cross multiply
    18,456.62x = 27,668.51 × 6,767.10
  4. Step 4: Simplify right side
    18,456.62x = 187,235,540.19
  5. Step 5: Solve for x
    x = 187,235,540.19/18,456.62
  6. Step 6: Final answer
    x = 10,144.63

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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.