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Finding the Fourth Proportional to 9,912.75, 14,871.39 and 4,366.52

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Solution

The fourth proportional to 9,912.75, 14,871.39 and 4,366.52 is: 6,550.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.75 : 14,871.39 = 4,366.52 : x
  2. Step 2: Convert to fraction form
    9,912.75/14,871.39 = 4,366.52/x
  3. Step 3: Cross multiply
    9,912.75x = 14,871.39 × 4,366.52
  4. Step 4: Simplify right side
    9,912.75x = 64,936,181.92
  5. Step 5: Solve for x
    x = 64,936,181.92/9,912.75
  6. Step 6: Final answer
    x = 6,550.78

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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.