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Finding the Third Proportional to 1,913,420 and 4,131,226

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Solution

The third proportional to 1,913,420 and 4,131,226 is: 8,919,645.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,420 : 4,131,226 = 4,131,226 : x
  2. Step 2: Convert to fraction form
    1,913,420/4,131,226 = 4,131,226/x
  3. Step 3: Cross multiply
    1,913,420x = 4,131,226 × 4,131,226
  4. Step 4: Simplify right side
    1,913,420x = 17,067,028,263,076
  5. Step 5: Solve for x
    x = 17,067,028,263,076/1,913,420
  6. Step 6: Final answer
    x = 8,919,645.59

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.