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Finding the Fourth Proportional to 8,676.11, 11,993.21 and 7,741.17

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Solution

The fourth proportional to 8,676.11, 11,993.21 and 7,741.17 is: 10,700.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.11 : 11,993.21 = 7,741.17 : x
  2. Step 2: Convert to fraction form
    8,676.11/11,993.21 = 7,741.17/x
  3. Step 3: Cross multiply
    8,676.11x = 11,993.21 × 7,741.17
  4. Step 4: Simplify right side
    8,676.11x = 92,841,496.81
  5. Step 5: Solve for x
    x = 92,841,496.81/8,676.11
  6. Step 6: Final answer
    x = 10,700.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.