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Finding the Fourth Proportional to 8,663.97, 12,994.09 and 2,741.32

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Solution

The fourth proportional to 8,663.97, 12,994.09 and 2,741.32 is: 4,111.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.97 : 12,994.09 = 2,741.32 : x
  2. Step 2: Convert to fraction form
    8,663.97/12,994.09 = 2,741.32/x
  3. Step 3: Cross multiply
    8,663.97x = 12,994.09 × 2,741.32
  4. Step 4: Simplify right side
    8,663.97x = 35,620,958.80
  5. Step 5: Solve for x
    x = 35,620,958.80/8,663.97
  6. Step 6: Final answer
    x = 4,111.39

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1.5x scale

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.