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Finding the Third Proportional to 12,115,552,951.13 and 18,610,972,728.75

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Solution

The third proportional to 12,115,552,951.13 and 18,610,972,728.75 is: 28,588,732,788.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,552,951.13 : 18,610,972,728.75 = 18,610,972,728.75 : x
  2. Step 2: Convert to fraction form
    12,115,552,951.13/18,610,972,728.75 = 18,610,972,728.75/x
  3. Step 3: Cross multiply
    12,115,552,951.13x = 18,610,972,728.75 × 18,610,972,728.75
  4. Step 4: Simplify right side
    12,115,552,951.13x = 346,368,305,910,276,227,072
  5. Step 5: Solve for x
    x = 346,368,305,910,276,227,072/12,115,552,951.13
  6. Step 6: Final answer
    x = 28,588,732,788.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.