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Finding the Fourth Proportional to 5,978.04, 8,250 and 3,325.50

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Solution

The fourth proportional to 5,978.04, 8,250 and 3,325.50 is: 4,589.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978.04 : 8,250 = 3,325.50 : x
  2. Step 2: Convert to fraction form
    5,978.04/8,250 = 3,325.50/x
  3. Step 3: Cross multiply
    5,978.04x = 8,250 × 3,325.50
  4. Step 4: Simplify right side
    5,978.04x = 27,435,375
  5. Step 5: Solve for x
    x = 27,435,375/5,978.04
  6. Step 6: Final answer
    x = 4,589.36

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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.