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Finding the Third Proportional to 8,451,813.75 and 12,627,967.88

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Solution

The third proportional to 8,451,813.75 and 12,627,967.88 is: 18,867,615.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451,813.75 : 12,627,967.88 = 12,627,967.88 : x
  2. Step 2: Convert to fraction form
    8,451,813.75/12,627,967.88 = 12,627,967.88/x
  3. Step 3: Cross multiply
    8,451,813.75x = 12,627,967.88 × 12,627,967.88
  4. Step 4: Simplify right side
    8,451,813.75x = 159,465,572,652,032
  5. Step 5: Solve for x
    x = 159,465,572,652,032/8,451,813.75
  6. Step 6: Final answer
    x = 18,867,615.56

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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.