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Finding the Third Proportional to 21,857,553 and 47,079,036

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Solution

The third proportional to 21,857,553 and 47,079,036 is: 101,403,648.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,857,553 : 47,079,036 = 47,079,036 : x
  2. Step 2: Convert to fraction form
    21,857,553/47,079,036 = 47,079,036/x
  3. Step 3: Cross multiply
    21,857,553x = 47,079,036 × 47,079,036
  4. Step 4: Simplify right side
    21,857,553x = 2,216,435,630,689,296
  5. Step 5: Solve for x
    x = 2,216,435,630,689,296/21,857,553
  6. Step 6: Final answer
    x = 101,403,648.92

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.