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Finding the Third Proportional to 19,324,979 and 42,122,185

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Solution

The third proportional to 19,324,979 and 42,122,185 is: 91,812,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,324,979 : 42,122,185 = 42,122,185 : x
  2. Step 2: Convert to fraction form
    19,324,979/42,122,185 = 42,122,185/x
  3. Step 3: Cross multiply
    19,324,979x = 42,122,185 × 42,122,185
  4. Step 4: Simplify right side
    19,324,979x = 1,774,278,469,174,225
  5. Step 5: Solve for x
    x = 1,774,278,469,174,225/19,324,979
  6. Step 6: Final answer
    x = 91,812,698.43

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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.