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Finding the Fourth Proportional to 43,481.34, 65,232.14 and 13,896.90

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Solution

The fourth proportional to 43,481.34, 65,232.14 and 13,896.90 is: 20,848.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,481.34 : 65,232.14 = 13,896.90 : x
  2. Step 2: Convert to fraction form
    43,481.34/65,232.14 = 13,896.90/x
  3. Step 3: Cross multiply
    43,481.34x = 65,232.14 × 13,896.90
  4. Step 4: Simplify right side
    43,481.34x = 906,524,456.88
  5. Step 5: Solve for x
    x = 906,524,456.88/43,481.34
  6. Step 6: Final answer
    x = 20,848.59

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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.