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Finding the Third Proportional to 3,151,489 and 6,915,698

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Solution

The third proportional to 3,151,489 and 6,915,698 is: 15,175,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151,489 : 6,915,698 = 6,915,698 : x
  2. Step 2: Convert to fraction form
    3,151,489/6,915,698 = 6,915,698/x
  3. Step 3: Cross multiply
    3,151,489x = 6,915,698 × 6,915,698
  4. Step 4: Simplify right side
    3,151,489x = 47,826,878,827,204
  5. Step 5: Solve for x
    x = 47,826,878,827,204/3,151,489
  6. Step 6: Final answer
    x = 15,175,962.48

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.