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Finding the Fourth Proportional to 16,879.49, 23,293.86 and 9,326

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Solution

The fourth proportional to 16,879.49, 23,293.86 and 9,326 is: 12,869.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.49 : 23,293.86 = 9,326 : x
  2. Step 2: Convert to fraction form
    16,879.49/23,293.86 = 9,326/x
  3. Step 3: Cross multiply
    16,879.49x = 23,293.86 × 9,326
  4. Step 4: Simplify right side
    16,879.49x = 217,238,538.36
  5. Step 5: Solve for x
    x = 217,238,538.36/16,879.49
  6. Step 6: Final answer
    x = 12,869.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.