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Finding the Fourth Proportional to 13,475.96, 20,217.12 and 4,241.96

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Solution

The fourth proportional to 13,475.96, 20,217.12 and 4,241.96 is: 6,363.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475.96 : 20,217.12 = 4,241.96 : x
  2. Step 2: Convert to fraction form
    13,475.96/20,217.12 = 4,241.96/x
  3. Step 3: Cross multiply
    13,475.96x = 20,217.12 × 4,241.96
  4. Step 4: Simplify right side
    13,475.96x = 85,760,214.36
  5. Step 5: Solve for x
    x = 85,760,214.36/13,475.96
  6. Step 6: Final answer
    x = 6,363.94

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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.