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Finding the Fourth Proportional to 14,481.15, 21,734.02 and 5,722.21

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Solution

The fourth proportional to 14,481.15, 21,734.02 and 5,722.21 is: 8,588.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,481.15 : 21,734.02 = 5,722.21 : x
  2. Step 2: Convert to fraction form
    14,481.15/21,734.02 = 5,722.21/x
  3. Step 3: Cross multiply
    14,481.15x = 21,734.02 × 5,722.21
  4. Step 4: Simplify right side
    14,481.15x = 124,366,660.90
  5. Step 5: Solve for x
    x = 124,366,660.90/14,481.15
  6. Step 6: Final answer
    x = 8,588.18

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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.