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Finding the Third Proportional to 21,179,815 and 46,243,769

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Solution

The third proportional to 21,179,815 and 46,243,769 is: 100,968,123.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179,815 : 46,243,769 = 46,243,769 : x
  2. Step 2: Convert to fraction form
    21,179,815/46,243,769 = 46,243,769/x
  3. Step 3: Cross multiply
    21,179,815x = 46,243,769 × 46,243,769
  4. Step 4: Simplify right side
    21,179,815x = 2,138,486,171,325,361
  5. Step 5: Solve for x
    x = 2,138,486,171,325,361/21,179,815
  6. Step 6: Final answer
    x = 100,968,123.25

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.