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Finding the Third Proportional to 4,518,644.63 and 9,933,982.88

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Solution

The third proportional to 4,518,644.63 and 9,933,982.88 is: 21,839,295.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518,644.63 : 9,933,982.88 = 9,933,982.88 : x
  2. Step 2: Convert to fraction form
    4,518,644.63/9,933,982.88 = 9,933,982.88/x
  3. Step 3: Cross multiply
    4,518,644.63x = 9,933,982.88 × 9,933,982.88
  4. Step 4: Simplify right side
    4,518,644.63x = 98,684,015,760,793.27
  5. Step 5: Solve for x
    x = 98,684,015,760,793.27/4,518,644.63
  6. Step 6: Final answer
    x = 21,839,295.62

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.