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Finding the Fourth Proportional to 12,383,026.80, 18,558,793.80 and 11,028,836.40

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Solution

The fourth proportional to 12,383,026.80, 18,558,793.80 and 11,028,836.40 is: 16,529,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383,026.80 : 18,558,793.80 = 11,028,836.40 : x
  2. Step 2: Convert to fraction form
    12,383,026.80/18,558,793.80 = 11,028,836.40/x
  3. Step 3: Cross multiply
    12,383,026.80x = 18,558,793.80 × 11,028,836.40
  4. Step 4: Simplify right side
    12,383,026.80x = 204,681,900,601,534.34
  5. Step 5: Solve for x
    x = 204,681,900,601,534.34/12,383,026.80
  6. Step 6: Final answer
    x = 16,529,230.20

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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.