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Finding the Fourth Proportional to 18,093.99, 27,125.42 and 8,721.14

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Solution

The fourth proportional to 18,093.99, 27,125.42 and 8,721.14 is: 13,074.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,093.99 : 27,125.42 = 8,721.14 : x
  2. Step 2: Convert to fraction form
    18,093.99/27,125.42 = 8,721.14/x
  3. Step 3: Cross multiply
    18,093.99x = 27,125.42 × 8,721.14
  4. Step 4: Simplify right side
    18,093.99x = 236,564,585.38
  5. Step 5: Solve for x
    x = 236,564,585.38/18,093.99
  6. Step 6: Final answer
    x = 13,074.21

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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.