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Finding the Third Proportional to 21,991,681 and 45,491,906

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Solution

The third proportional to 21,991,681 and 45,491,906 is: 94,104,380.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991,681 : 45,491,906 = 45,491,906 : x
  2. Step 2: Convert to fraction form
    21,991,681/45,491,906 = 45,491,906/x
  3. Step 3: Cross multiply
    21,991,681x = 45,491,906 × 45,491,906
  4. Step 4: Simplify right side
    21,991,681x = 2,069,513,511,512,836
  5. Step 5: Solve for x
    x = 2,069,513,511,512,836/21,991,681
  6. Step 6: Final answer
    x = 94,104,380.27

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.