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Finding the Fourth Proportional to 43,472.42, 65,213.22 and 13,883.30

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Solution

The fourth proportional to 43,472.42, 65,213.22 and 13,883.30 is: 20,826.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,472.42 : 65,213.22 = 13,883.30 : x
  2. Step 2: Convert to fraction form
    43,472.42/65,213.22 = 13,883.30/x
  3. Step 3: Cross multiply
    43,472.42x = 65,213.22 × 13,883.30
  4. Step 4: Simplify right side
    43,472.42x = 905,374,697.23
  5. Step 5: Solve for x
    x = 905,374,697.23/43,472.42
  6. Step 6: Final answer
    x = 20,826.42

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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.