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Finding the Fourth Proportional to 9,912.11, 14,868.12 and 2,516.54

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Solution

The fourth proportional to 9,912.11, 14,868.12 and 2,516.54 is: 3,774.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.11 : 14,868.12 = 2,516.54 : x
  2. Step 2: Convert to fraction form
    9,912.11/14,868.12 = 2,516.54/x
  3. Step 3: Cross multiply
    9,912.11x = 14,868.12 × 2,516.54
  4. Step 4: Simplify right side
    9,912.11x = 37,416,144.36
  5. Step 5: Solve for x
    x = 37,416,144.36/9,912.11
  6. Step 6: Final answer
    x = 3,774.79

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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.