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Finding the Fourth Proportional to 18,474.01, 27,706.78 and 7,377.71

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Solution

The fourth proportional to 18,474.01, 27,706.78 and 7,377.71 is: 11,064.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.01 : 27,706.78 = 7,377.71 : x
  2. Step 2: Convert to fraction form
    18,474.01/27,706.78 = 7,377.71/x
  3. Step 3: Cross multiply
    18,474.01x = 27,706.78 × 7,377.71
  4. Step 4: Simplify right side
    18,474.01x = 204,412,587.87
  5. Step 5: Solve for x
    x = 204,412,587.87/18,474.01
  6. Step 6: Final answer
    x = 11,064.87

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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.