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Finding the Fourth Proportional to 8,604.09, 12,906.41 and 3,057.89

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Solution

The fourth proportional to 8,604.09, 12,906.41 and 3,057.89 is: 4,586.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.09 : 12,906.41 = 3,057.89 : x
  2. Step 2: Convert to fraction form
    8,604.09/12,906.41 = 3,057.89/x
  3. Step 3: Cross multiply
    8,604.09x = 12,906.41 × 3,057.89
  4. Step 4: Simplify right side
    8,604.09x = 39,466,302.25
  5. Step 5: Solve for x
    x = 39,466,302.25/8,604.09
  6. Step 6: Final answer
    x = 4,586.92

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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.