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Finding the Fourth Proportional to 4,800, 7,174.66 and 4,170.36

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Solution

The fourth proportional to 4,800, 7,174.66 and 4,170.36 is: 6,233.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800 : 7,174.66 = 4,170.36 : x
  2. Step 2: Convert to fraction form
    4,800/7,174.66 = 4,170.36/x
  3. Step 3: Cross multiply
    4,800x = 7,174.66 × 4,170.36
  4. Step 4: Simplify right side
    4,800x = 29,920,915.08
  5. Step 5: Solve for x
    x = 29,920,915.08/4,800
  6. Step 6: Final answer
    x = 6,233.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.