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Finding the Fourth Proportional to 17,293.87, 25,906.65 and 8,979.31

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Solution

The fourth proportional to 17,293.87, 25,906.65 and 8,979.31 is: 13,451.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,293.87 : 25,906.65 = 8,979.31 : x
  2. Step 2: Convert to fraction form
    17,293.87/25,906.65 = 8,979.31/x
  3. Step 3: Cross multiply
    17,293.87x = 25,906.65 × 8,979.31
  4. Step 4: Simplify right side
    17,293.87x = 232,623,841.41
  5. Step 5: Solve for x
    x = 232,623,841.41/17,293.87
  6. Step 6: Final answer
    x = 13,451.23

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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.