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Finding the Third Proportional to 8,451,816.75 and 12,627,970.88

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Solution

The third proportional to 8,451,816.75 and 12,627,970.88 is: 18,867,617.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451,816.75 : 12,627,970.88 = 12,627,970.88 : x
  2. Step 2: Convert to fraction form
    8,451,816.75/12,627,970.88 = 12,627,970.88/x
  3. Step 3: Cross multiply
    8,451,816.75x = 12,627,970.88 × 12,627,970.88
  4. Step 4: Simplify right side
    8,451,816.75x = 159,465,648,419,848.25
  5. Step 5: Solve for x
    x = 159,465,648,419,848.25/8,451,816.75
  6. Step 6: Final answer
    x = 18,867,617.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.