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Finding the Third Proportional to 21,991,822.73 and 28,919,230.66

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Solution

The third proportional to 21,991,822.73 and 28,919,230.66 is: 38,028,766.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991,822.73 : 28,919,230.66 = 28,919,230.66 : x
  2. Step 2: Convert to fraction form
    21,991,822.73/28,919,230.66 = 28,919,230.66/x
  3. Step 3: Cross multiply
    21,991,822.73x = 28,919,230.66 × 28,919,230.66
  4. Step 4: Simplify right side
    21,991,822.73x = 836,321,902,201,223.88
  5. Step 5: Solve for x
    x = 836,321,902,201,223.88/21,991,822.73
  6. Step 6: Final answer
    x = 38,028,766.98

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.