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Finding the Fourth Proportional to 7,392.60, 11,081 and 3,687.52

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Solution

The fourth proportional to 7,392.60, 11,081 and 3,687.52 is: 5,527.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,392.60 : 11,081 = 3,687.52 : x
  2. Step 2: Convert to fraction form
    7,392.60/11,081 = 3,687.52/x
  3. Step 3: Cross multiply
    7,392.60x = 11,081 × 3,687.52
  4. Step 4: Simplify right side
    7,392.60x = 40,861,409.12
  5. Step 5: Solve for x
    x = 40,861,409.12/7,392.60
  6. Step 6: Final answer
    x = 5,527.34

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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.