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Finding the Fourth Proportional to 18,607,764.89, 27,893,425.17 and 10,414,408.59

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Solution

The fourth proportional to 18,607,764.89, 27,893,425.17 and 10,414,408.59 is: 15,611,414.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607,764.89 : 27,893,425.17 = 10,414,408.59 : x
  2. Step 2: Convert to fraction form
    18,607,764.89/27,893,425.17 = 10,414,408.59/x
  3. Step 3: Cross multiply
    18,607,764.89x = 27,893,425.17 × 10,414,408.59
  4. Step 4: Simplify right side
    18,607,764.89x = 290,493,526,555,503.12
  5. Step 5: Solve for x
    x = 290,493,526,555,503.12/18,607,764.89
  6. Step 6: Final answer
    x = 15,611,414.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.