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Finding the Fourth Proportional to 8,912.97, 13,362.17 and 3,363.15

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Solution

The fourth proportional to 8,912.97, 13,362.17 and 3,363.15 is: 5,041.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.97 : 13,362.17 = 3,363.15 : x
  2. Step 2: Convert to fraction form
    8,912.97/13,362.17 = 3,363.15/x
  3. Step 3: Cross multiply
    8,912.97x = 13,362.17 × 3,363.15
  4. Step 4: Simplify right side
    8,912.97x = 44,939,015.33
  5. Step 5: Solve for x
    x = 44,939,015.33/8,912.97
  6. Step 6: Final answer
    x = 5,041.98

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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.