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Finding the Third Proportional to 4,777,775,085 and 7,418,211,426

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Solution

The third proportional to 4,777,775,085 and 7,418,211,426 is: 11,517,884,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,777,775,085 : 7,418,211,426 = 7,418,211,426 : x
  2. Step 2: Convert to fraction form
    4,777,775,085/7,418,211,426 = 7,418,211,426/x
  3. Step 3: Cross multiply
    4,777,775,085x = 7,418,211,426 × 7,418,211,426
  4. Step 4: Simplify right side
    4,777,775,085x = 55,029,860,760,836,956,160
  5. Step 5: Solve for x
    x = 55,029,860,760,836,956,160/4,777,775,085
  6. Step 6: Final answer
    x = 11,517,884,325.20

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.