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Finding the Fourth Proportional to 17,668.61, 26,471.31 and 9,329.97

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Solution

The fourth proportional to 17,668.61, 26,471.31 and 9,329.97 is: 13,978.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,668.61 : 26,471.31 = 9,329.97 : x
  2. Step 2: Convert to fraction form
    17,668.61/26,471.31 = 9,329.97/x
  3. Step 3: Cross multiply
    17,668.61x = 26,471.31 × 9,329.97
  4. Step 4: Simplify right side
    17,668.61x = 246,976,443.54
  5. Step 5: Solve for x
    x = 246,976,443.54/17,668.61
  6. Step 6: Final answer
    x = 13,978.26

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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.