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Finding the Third Proportional to 8,987,239,849 and 19,538,801,893

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Solution

The third proportional to 8,987,239,849 and 19,538,801,893 is: 42,478,534,658.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987,239,849 : 19,538,801,893 = 19,538,801,893 : x
  2. Step 2: Convert to fraction form
    8,987,239,849/19,538,801,893 = 19,538,801,893/x
  3. Step 3: Cross multiply
    8,987,239,849x = 19,538,801,893 × 19,538,801,893
  4. Step 4: Simplify right side
    8,987,239,849x = 381,764,779,413,900,361,728
  5. Step 5: Solve for x
    x = 381,764,779,413,900,361,728/8,987,239,849
  6. Step 6: Final answer
    x = 42,478,534,658.93

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.