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Finding the Fourth Proportional to 7,445.64, 11,169 and 2,251.92

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Solution

The fourth proportional to 7,445.64, 11,169 and 2,251.92 is: 3,378.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445.64 : 11,169 = 2,251.92 : x
  2. Step 2: Convert to fraction form
    7,445.64/11,169 = 2,251.92/x
  3. Step 3: Cross multiply
    7,445.64x = 11,169 × 2,251.92
  4. Step 4: Simplify right side
    7,445.64x = 25,151,694.48
  5. Step 5: Solve for x
    x = 25,151,694.48/7,445.64
  6. Step 6: Final answer
    x = 3,378.04

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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.