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Finding the Fourth Proportional to 8,586.14, 12,881.97 and 3,659.99

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Solution

The fourth proportional to 8,586.14, 12,881.97 and 3,659.99 is: 5,491.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.14 : 12,881.97 = 3,659.99 : x
  2. Step 2: Convert to fraction form
    8,586.14/12,881.97 = 3,659.99/x
  3. Step 3: Cross multiply
    8,586.14x = 12,881.97 × 3,659.99
  4. Step 4: Simplify right side
    8,586.14x = 47,147,816.97
  5. Step 5: Solve for x
    x = 47,147,816.97/8,586.14
  6. Step 6: Final answer
    x = 5,491.16

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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.