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Finding the Fourth Proportional to 8,994.12, 13,486.77 and 3,149.88

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Solution

The fourth proportional to 8,994.12, 13,486.77 and 3,149.88 is: 4,723.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.12 : 13,486.77 = 3,149.88 : x
  2. Step 2: Convert to fraction form
    8,994.12/13,486.77 = 3,149.88/x
  3. Step 3: Cross multiply
    8,994.12x = 13,486.77 × 3,149.88
  4. Step 4: Simplify right side
    8,994.12x = 42,481,707.09
  5. Step 5: Solve for x
    x = 42,481,707.09/8,994.12
  6. Step 6: Final answer
    x = 4,723.28

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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.