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Finding the Third Proportional to 7,979.25 and 17,143.13

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Solution

The third proportional to 7,979.25 and 17,143.13 is: 36,831.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.25 : 17,143.13 = 17,143.13 : x
  2. Step 2: Convert to fraction form
    7,979.25/17,143.13 = 17,143.13/x
  3. Step 3: Cross multiply
    7,979.25x = 17,143.13 × 17,143.13
  4. Step 4: Simplify right side
    7,979.25x = 293,886,734.77
  5. Step 5: Solve for x
    x = 293,886,734.77/7,979.25
  6. Step 6: Final answer
    x = 36,831.37

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.