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Finding the Fourth Proportional to 14,789.16, 22,131.90 and 11,481.12

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Solution

The fourth proportional to 14,789.16, 22,131.90 and 11,481.12 is: 17,181.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.16 : 22,131.90 = 11,481.12 : x
  2. Step 2: Convert to fraction form
    14,789.16/22,131.90 = 11,481.12/x
  3. Step 3: Cross multiply
    14,789.16x = 22,131.90 × 11,481.12
  4. Step 4: Simplify right side
    14,789.16x = 254,098,999.73
  5. Step 5: Solve for x
    x = 254,098,999.73/14,789.16
  6. Step 6: Final answer
    x = 17,181.44

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1.5x scale

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.