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Finding the Third Proportional to 21,664,550 and 47,579,978

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Solution

The third proportional to 21,664,550 and 47,579,978 is: 104,495,791.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664,550 : 47,579,978 = 47,579,978 : x
  2. Step 2: Convert to fraction form
    21,664,550/47,579,978 = 47,579,978/x
  3. Step 3: Cross multiply
    21,664,550x = 47,579,978 × 47,579,978
  4. Step 4: Simplify right side
    21,664,550x = 2,263,854,306,480,484
  5. Step 5: Solve for x
    x = 2,263,854,306,480,484/21,664,550
  6. Step 6: Final answer
    x = 104,495,791.81

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.