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Finding the Fourth Proportional to 18,606.36, 27,854.10 and 17,942.07

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Solution

The fourth proportional to 18,606.36, 27,854.10 and 17,942.07 is: 26,859.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.36 : 27,854.10 = 17,942.07 : x
  2. Step 2: Convert to fraction form
    18,606.36/27,854.10 = 17,942.07/x
  3. Step 3: Cross multiply
    18,606.36x = 27,854.10 × 17,942.07
  4. Step 4: Simplify right side
    18,606.36x = 499,760,211.99
  5. Step 5: Solve for x
    x = 499,760,211.99/18,606.36
  6. Step 6: Final answer
    x = 26,859.64

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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.