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Finding the Third Proportional to 1,878,445 and 3,999,799

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Solution

The third proportional to 1,878,445 and 3,999,799 is: 8,516,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878,445 : 3,999,799 = 3,999,799 : x
  2. Step 2: Convert to fraction form
    1,878,445/3,999,799 = 3,999,799/x
  3. Step 3: Cross multiply
    1,878,445x = 3,999,799 × 3,999,799
  4. Step 4: Simplify right side
    1,878,445x = 15,998,392,040,401
  5. Step 5: Solve for x
    x = 15,998,392,040,401/1,878,445
  6. Step 6: Final answer
    x = 8,516,827.50

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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.