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Finding the Fourth Proportional to 18,469.92, 27,704.93 and 7,377.51

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Solution

The fourth proportional to 18,469.92, 27,704.93 and 7,377.51 is: 11,066.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,469.92 : 27,704.93 = 7,377.51 : x
  2. Step 2: Convert to fraction form
    18,469.92/27,704.93 = 7,377.51/x
  3. Step 3: Cross multiply
    18,469.92x = 27,704.93 × 7,377.51
  4. Step 4: Simplify right side
    18,469.92x = 204,393,398.12
  5. Step 5: Solve for x
    x = 204,393,398.12/18,469.92
  6. Step 6: Final answer
    x = 11,066.28

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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.