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Finding the Third Proportional to 21,949,869 and 47,271,065

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Solution

The third proportional to 21,949,869 and 47,271,065 is: 101,802,593.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,949,869 : 47,271,065 = 47,271,065 : x
  2. Step 2: Convert to fraction form
    21,949,869/47,271,065 = 47,271,065/x
  3. Step 3: Cross multiply
    21,949,869x = 47,271,065 × 47,271,065
  4. Step 4: Simplify right side
    21,949,869x = 2,234,553,586,234,225
  5. Step 5: Solve for x
    x = 2,234,553,586,234,225/21,949,869
  6. Step 6: Final answer
    x = 101,802,593.27

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.