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Finding the Third Proportional to 873,103 and 1,873,780

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Solution

The third proportional to 873,103 and 1,873,780 is: 4,021,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,103 : 1,873,780 = 1,873,780 : x
  2. Step 2: Convert to fraction form
    873,103/1,873,780 = 1,873,780/x
  3. Step 3: Cross multiply
    873,103x = 1,873,780 × 1,873,780
  4. Step 4: Simplify right side
    873,103x = 3,511,051,488,400
  5. Step 5: Solve for x
    x = 3,511,051,488,400/873,103
  6. Step 6: Final answer
    x = 4,021,348.56

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.