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Finding the Third Proportional to 47,760,080 and 72,039,610

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Solution

The third proportional to 47,760,080 and 72,039,610 is: 108,661,991.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,760,080 : 72,039,610 = 72,039,610 : x
  2. Step 2: Convert to fraction form
    47,760,080/72,039,610 = 72,039,610/x
  3. Step 3: Cross multiply
    47,760,080x = 72,039,610 × 72,039,610
  4. Step 4: Simplify right side
    47,760,080x = 5,189,705,408,952,100
  5. Step 5: Solve for x
    x = 5,189,705,408,952,100/47,760,080
  6. Step 6: Final answer
    x = 108,661,991.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.