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Finding the Third Proportional to 1,878,442 and 3,999,794

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Solution

The third proportional to 1,878,442 and 3,999,794 is: 8,516,819.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878,442 : 3,999,794 = 3,999,794 : x
  2. Step 2: Convert to fraction form
    1,878,442/3,999,794 = 3,999,794/x
  3. Step 3: Cross multiply
    1,878,442x = 3,999,794 × 3,999,794
  4. Step 4: Simplify right side
    1,878,442x = 15,998,352,042,436
  5. Step 5: Solve for x
    x = 15,998,352,042,436/1,878,442
  6. Step 6: Final answer
    x = 8,516,819.81

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.