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Finding the Third Proportional to 6,976.13 and 10,479.80

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Solution

The third proportional to 6,976.13 and 10,479.80 is: 15,743.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,976.13 : 10,479.80 = 10,479.80 : x
  2. Step 2: Convert to fraction form
    6,976.13/10,479.80 = 10,479.80/x
  3. Step 3: Cross multiply
    6,976.13x = 10,479.80 × 10,479.80
  4. Step 4: Simplify right side
    6,976.13x = 109,826,142.54
  5. Step 5: Solve for x
    x = 109,826,142.54/6,976.13
  6. Step 6: Final answer
    x = 15,743.14

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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.