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Finding the Fourth Proportional to 17,668.97, 26,496.97 and 5,185.79

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Solution

The fourth proportional to 17,668.97, 26,496.97 and 5,185.79 is: 7,776.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,668.97 : 26,496.97 = 5,185.79 : x
  2. Step 2: Convert to fraction form
    17,668.97/26,496.97 = 5,185.79/x
  3. Step 3: Cross multiply
    17,668.97x = 26,496.97 × 5,185.79
  4. Step 4: Simplify right side
    17,668.97x = 137,407,722.06
  5. Step 5: Solve for x
    x = 137,407,722.06/17,668.97
  6. Step 6: Final answer
    x = 7,776.78

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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.