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Finding the Third Proportional to 20,731,846 and 45,109,968

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Solution

The third proportional to 20,731,846 and 45,109,968 is: 98,153,787.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731,846 : 45,109,968 = 45,109,968 : x
  2. Step 2: Convert to fraction form
    20,731,846/45,109,968 = 45,109,968/x
  3. Step 3: Cross multiply
    20,731,846x = 45,109,968 × 45,109,968
  4. Step 4: Simplify right side
    20,731,846x = 2,034,909,212,961,024
  5. Step 5: Solve for x
    x = 2,034,909,212,961,024/20,731,846
  6. Step 6: Final answer
    x = 98,153,787.80

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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.