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Finding the Fourth Proportional to 8,394,481.40, 12,591,722.10 and 6,714,865.40

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Solution

The fourth proportional to 8,394,481.40, 12,591,722.10 and 6,714,865.40 is: 10,072,298.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394,481.40 : 12,591,722.10 = 6,714,865.40 : x
  2. Step 2: Convert to fraction form
    8,394,481.40/12,591,722.10 = 6,714,865.40/x
  3. Step 3: Cross multiply
    8,394,481.40x = 12,591,722.10 × 6,714,865.40
  4. Step 4: Simplify right side
    8,394,481.40x = 84,551,719,055,705.34
  5. Step 5: Solve for x
    x = 84,551,719,055,705.34/8,394,481.40
  6. Step 6: Final answer
    x = 10,072,298.10

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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.