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Finding the Third Proportional to 21,215,694 and 45,812,004

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Solution

The third proportional to 21,215,694 and 45,812,004 is: 98,923,924.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,215,694 : 45,812,004 = 45,812,004 : x
  2. Step 2: Convert to fraction form
    21,215,694/45,812,004 = 45,812,004/x
  3. Step 3: Cross multiply
    21,215,694x = 45,812,004 × 45,812,004
  4. Step 4: Simplify right side
    21,215,694x = 2,098,739,710,496,016
  5. Step 5: Solve for x
    x = 2,098,739,710,496,016/21,215,694
  6. Step 6: Final answer
    x = 98,923,924.45

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.