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Finding the Third Proportional to 12,171,396.09 and 18,955,025.58

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Solution

The third proportional to 12,171,396.09 and 18,955,025.58 is: 29,519,456.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171,396.09 : 18,955,025.58 = 18,955,025.58 : x
  2. Step 2: Convert to fraction form
    12,171,396.09/18,955,025.58 = 18,955,025.58/x
  3. Step 3: Cross multiply
    12,171,396.09x = 18,955,025.58 × 18,955,025.58
  4. Step 4: Simplify right side
    12,171,396.09x = 359,292,994,667,373
  5. Step 5: Solve for x
    x = 359,292,994,667,373/12,171,396.09
  6. Step 6: Final answer
    x = 29,519,456.26

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.