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Finding the Fourth Proportional to 5,375.72, 8,064.12 and 1,480.16

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Solution

The fourth proportional to 5,375.72, 8,064.12 and 1,480.16 is: 2,220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.72 : 8,064.12 = 1,480.16 : x
  2. Step 2: Convert to fraction form
    5,375.72/8,064.12 = 1,480.16/x
  3. Step 3: Cross multiply
    5,375.72x = 8,064.12 × 1,480.16
  4. Step 4: Simplify right side
    5,375.72x = 11,936,187.86
  5. Step 5: Solve for x
    x = 11,936,187.86/5,375.72
  6. Step 6: Final answer
    x = 2,220.39

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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.