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Finding the Third Proportional to 20,731,796 and 45,109,866

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Solution

The third proportional to 20,731,796 and 45,109,866 is: 98,153,580.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731,796 : 45,109,866 = 45,109,866 : x
  2. Step 2: Convert to fraction form
    20,731,796/45,109,866 = 45,109,866/x
  3. Step 3: Cross multiply
    20,731,796x = 45,109,866 × 45,109,866
  4. Step 4: Simplify right side
    20,731,796x = 2,034,900,010,537,956
  5. Step 5: Solve for x
    x = 2,034,900,010,537,956/20,731,796
  6. Step 6: Final answer
    x = 98,153,580.64

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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.