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Finding the Fourth Proportional to 8,449.72, 12,676.70 and 3,516.82

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Solution

The fourth proportional to 8,449.72, 12,676.70 and 3,516.82 is: 5,276.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.72 : 12,676.70 = 3,516.82 : x
  2. Step 2: Convert to fraction form
    8,449.72/12,676.70 = 3,516.82/x
  3. Step 3: Cross multiply
    8,449.72x = 12,676.70 × 3,516.82
  4. Step 4: Simplify right side
    8,449.72x = 44,581,649.19
  5. Step 5: Solve for x
    x = 44,581,649.19/8,449.72
  6. Step 6: Final answer
    x = 5,276.11

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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.