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Finding the Fourth Proportional to 8,174.24, 12,254.86 and 3,554

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Solution

The fourth proportional to 8,174.24, 12,254.86 and 3,554 is: 5,328.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,174.24 : 12,254.86 = 3,554 : x
  2. Step 2: Convert to fraction form
    8,174.24/12,254.86 = 3,554/x
  3. Step 3: Cross multiply
    8,174.24x = 12,254.86 × 3,554
  4. Step 4: Simplify right side
    8,174.24x = 43,553,772.44
  5. Step 5: Solve for x
    x = 43,553,772.44/8,174.24
  6. Step 6: Final answer
    x = 5,328.17

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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.