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Finding the Third Proportional to 3,540,576,974 and 7,721,915,778

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Solution

The third proportional to 3,540,576,974 and 7,721,915,778 is: 16,841,318,158.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540,576,974 : 7,721,915,778 = 7,721,915,778 : x
  2. Step 2: Convert to fraction form
    3,540,576,974/7,721,915,778 = 7,721,915,778/x
  3. Step 3: Cross multiply
    3,540,576,974x = 7,721,915,778 × 7,721,915,778
  4. Step 4: Simplify right side
    3,540,576,974x = 59,627,983,282,525,347,840
  5. Step 5: Solve for x
    x = 59,627,983,282,525,347,840/3,540,576,974
  6. Step 6: Final answer
    x = 16,841,318,158.14

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.