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Finding the Fourth Proportional to 5,376, 8,063.64 and 1,480.44

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Solution

The fourth proportional to 5,376, 8,063.64 and 1,480.44 is: 2,220.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376 : 8,063.64 = 1,480.44 : x
  2. Step 2: Convert to fraction form
    5,376/8,063.64 = 1,480.44/x
  3. Step 3: Cross multiply
    5,376x = 8,063.64 × 1,480.44
  4. Step 4: Simplify right side
    5,376x = 11,937,735.20
  5. Step 5: Solve for x
    x = 11,937,735.20/5,376
  6. Step 6: Final answer
    x = 2,220.56

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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.