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Finding the Third Proportional to 29,921,721 and 45,485,890

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Solution

The third proportional to 29,921,721 and 45,485,890 is: 69,145,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,921,721 : 45,485,890 = 45,485,890 : x
  2. Step 2: Convert to fraction form
    29,921,721/45,485,890 = 45,485,890/x
  3. Step 3: Cross multiply
    29,921,721x = 45,485,890 × 45,485,890
  4. Step 4: Simplify right side
    29,921,721x = 2,068,966,189,092,100
  5. Step 5: Solve for x
    x = 2,068,966,189,092,100/29,921,721
  6. Step 6: Final answer
    x = 69,145,962.20

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.