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Finding the Fourth Proportional to 8,394,539.70, 12,591,809.55 and 2,718,837.30

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Solution

The fourth proportional to 8,394,539.70, 12,591,809.55 and 2,718,837.30 is: 4,078,255.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394,539.70 : 12,591,809.55 = 2,718,837.30 : x
  2. Step 2: Convert to fraction form
    8,394,539.70/12,591,809.55 = 2,718,837.30/x
  3. Step 3: Cross multiply
    8,394,539.70x = 12,591,809.55 × 2,718,837.30
  4. Step 4: Simplify right side
    8,394,539.70x = 34,235,081,479,036.21
  5. Step 5: Solve for x
    x = 34,235,081,479,036.21/8,394,539.70
  6. Step 6: Final answer
    x = 4,078,255.95

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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.