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Finding the Third Proportional to 855,261 and 1,836,873

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Solution

The third proportional to 855,261 and 1,836,873 is: 3,945,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,261 : 1,836,873 = 1,836,873 : x
  2. Step 2: Convert to fraction form
    855,261/1,836,873 = 1,836,873/x
  3. Step 3: Cross multiply
    855,261x = 1,836,873 × 1,836,873
  4. Step 4: Simplify right side
    855,261x = 3,374,102,418,129
  5. Step 5: Solve for x
    x = 3,374,102,418,129/855,261
  6. Step 6: Final answer
    x = 3,945,114.32

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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.