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Finding the Third Proportional to 21,664,545 and 47,579,970

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Solution

The third proportional to 21,664,545 and 47,579,970 is: 104,495,780.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664,545 : 47,579,970 = 47,579,970 : x
  2. Step 2: Convert to fraction form
    21,664,545/47,579,970 = 47,579,970/x
  3. Step 3: Cross multiply
    21,664,545x = 47,579,970 × 47,579,970
  4. Step 4: Simplify right side
    21,664,545x = 2,263,853,545,200,900
  5. Step 5: Solve for x
    x = 2,263,853,545,200,900/21,664,545
  6. Step 6: Final answer
    x = 104,495,780.79

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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.