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Finding the Third Proportional to 21,667,318,828 and 30,512,359,551

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Solution

The third proportional to 21,667,318,828 and 30,512,359,551 is: 42,968,125,994.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,667,318,828 : 30,512,359,551 = 30,512,359,551 : x
  2. Step 2: Convert to fraction form
    21,667,318,828/30,512,359,551 = 30,512,359,551/x
  3. Step 3: Cross multiply
    21,667,318,828x = 30,512,359,551 × 30,512,359,551
  4. Step 4: Simplify right side
    21,667,318,828x = 931,004,085,369,500,860,416
  5. Step 5: Solve for x
    x = 931,004,085,369,500,860,416/21,667,318,828
  6. Step 6: Final answer
    x = 42,968,125,994.73

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.