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Finding the Fourth Proportional to 18,467.66, 27,684.74 and 7,372.02

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Solution

The fourth proportional to 18,467.66, 27,684.74 and 7,372.02 is: 11,051.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,467.66 : 27,684.74 = 7,372.02 : x
  2. Step 2: Convert to fraction form
    18,467.66/27,684.74 = 7,372.02/x
  3. Step 3: Cross multiply
    18,467.66x = 27,684.74 × 7,372.02
  4. Step 4: Simplify right side
    18,467.66x = 204,092,456.97
  5. Step 5: Solve for x
    x = 204,092,456.97/18,467.66
  6. Step 6: Final answer
    x = 11,051.34

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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.