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Finding the Fourth Proportional to 5,872.55, 8,104.10 and 3,220.12

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Solution

The fourth proportional to 5,872.55, 8,104.10 and 3,220.12 is: 4,443.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.55 : 8,104.10 = 3,220.12 : x
  2. Step 2: Convert to fraction form
    5,872.55/8,104.10 = 3,220.12/x
  3. Step 3: Cross multiply
    5,872.55x = 8,104.10 × 3,220.12
  4. Step 4: Simplify right side
    5,872.55x = 26,096,174.49
  5. Step 5: Solve for x
    x = 26,096,174.49/5,872.55
  6. Step 6: Final answer
    x = 4,443.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.