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Finding the Third Proportional to 3,806,131.50 and 8,206,423.88

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Solution

The third proportional to 3,806,131.50 and 8,206,423.88 is: 17,693,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806,131.50 : 8,206,423.88 = 8,206,423.88 : x
  2. Step 2: Convert to fraction form
    3,806,131.50/8,206,423.88 = 8,206,423.88/x
  3. Step 3: Cross multiply
    3,806,131.50x = 8,206,423.88 × 8,206,423.88
  4. Step 4: Simplify right side
    3,806,131.50x = 67,345,392,816,170.02
  5. Step 5: Solve for x
    x = 67,345,392,816,170.02/3,806,131.50
  6. Step 6: Final answer
    x = 17,693,921.72

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.