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Finding the Fourth Proportional to 8,814.60, 13,215.17 and 3,811.04

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Solution

The fourth proportional to 8,814.60, 13,215.17 and 3,811.04 is: 5,713.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.60 : 13,215.17 = 3,811.04 : x
  2. Step 2: Convert to fraction form
    8,814.60/13,215.17 = 3,811.04/x
  3. Step 3: Cross multiply
    8,814.60x = 13,215.17 × 3,811.04
  4. Step 4: Simplify right side
    8,814.60x = 50,363,456.35
  5. Step 5: Solve for x
    x = 50,363,456.35/8,814.60
  6. Step 6: Final answer
    x = 5,713.64

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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.