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Finding the Fourth Proportional to 16,978,656.24, 25,451,974.44 and 8,450,930.88

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Solution

The fourth proportional to 16,978,656.24, 25,451,974.44 and 8,450,930.88 is: 12,668,427.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,978,656.24 : 25,451,974.44 = 8,450,930.88 : x
  2. Step 2: Convert to fraction form
    16,978,656.24/25,451,974.44 = 8,450,930.88/x
  3. Step 3: Cross multiply
    16,978,656.24x = 25,451,974.44 × 8,450,930.88
  4. Step 4: Simplify right side
    16,978,656.24x = 215,092,876,751,966.75
  5. Step 5: Solve for x
    x = 215,092,876,751,966.75/16,978,656.24
  6. Step 6: Final answer
    x = 12,668,427.57

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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.