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Finding the Fourth Proportional to 5,318.75, 7,976.49 and 3,008.63

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Solution

The fourth proportional to 5,318.75, 7,976.49 and 3,008.63 is: 4,512.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.75 : 7,976.49 = 3,008.63 : x
  2. Step 2: Convert to fraction form
    5,318.75/7,976.49 = 3,008.63/x
  3. Step 3: Cross multiply
    5,318.75x = 7,976.49 × 3,008.63
  4. Step 4: Simplify right side
    5,318.75x = 23,998,267.23
  5. Step 5: Solve for x
    x = 23,998,267.23/5,318.75
  6. Step 6: Final answer
    x = 4,512.02

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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.