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Finding the Third Proportional to 4,019,008,372 and 5,428,329,708

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Solution

The third proportional to 4,019,008,372 and 5,428,329,708 is: 7,331,849,225.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,019,008,372 : 5,428,329,708 = 5,428,329,708 : x
  2. Step 2: Convert to fraction form
    4,019,008,372/5,428,329,708 = 5,428,329,708/x
  3. Step 3: Cross multiply
    4,019,008,372x = 5,428,329,708 × 5,428,329,708
  4. Step 4: Simplify right side
    4,019,008,372x = 29,466,763,418,755,366,912
  5. Step 5: Solve for x
    x = 29,466,763,418,755,366,912/4,019,008,372
  6. Step 6: Final answer
    x = 7,331,849,225.31

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.