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Finding the Fourth Proportional to 8,456.69, 12,676.12 and 4,064.87

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Solution

The fourth proportional to 8,456.69, 12,676.12 and 4,064.87 is: 6,093.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.69 : 12,676.12 = 4,064.87 : x
  2. Step 2: Convert to fraction form
    8,456.69/12,676.12 = 4,064.87/x
  3. Step 3: Cross multiply
    8,456.69x = 12,676.12 × 4,064.87
  4. Step 4: Simplify right side
    8,456.69x = 51,526,706.36
  5. Step 5: Solve for x
    x = 51,526,706.36/8,456.69
  6. Step 6: Final answer
    x = 6,093.01

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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.