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Finding the Fourth Proportional to 43,472.55, 65,204.64 and 13,885.14

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Solution

The fourth proportional to 43,472.55, 65,204.64 and 13,885.14 is: 20,826.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,472.55 : 65,204.64 = 13,885.14 : x
  2. Step 2: Convert to fraction form
    43,472.55/65,204.64 = 13,885.14/x
  3. Step 3: Cross multiply
    43,472.55x = 65,204.64 × 13,885.14
  4. Step 4: Simplify right side
    43,472.55x = 905,375,555.05
  5. Step 5: Solve for x
    x = 905,375,555.05/43,472.55
  6. Step 6: Final answer
    x = 20,826.37

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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.