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Finding the Fourth Proportional to 8,481,486.80, 12,718,543.80 and 2,496,616.40

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Solution

The fourth proportional to 8,481,486.80, 12,718,543.80 and 2,496,616.40 is: 3,743,839.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481,486.80 : 12,718,543.80 = 2,496,616.40 : x
  2. Step 2: Convert to fraction form
    8,481,486.80/12,718,543.80 = 2,496,616.40/x
  3. Step 3: Cross multiply
    8,481,486.80x = 12,718,543.80 × 2,496,616.40
  4. Step 4: Simplify right side
    8,481,486.80x = 31,753,325,035,198.32
  5. Step 5: Solve for x
    x = 31,753,325,035,198.32/8,481,486.80
  6. Step 6: Final answer
    x = 3,743,839.47

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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.