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Finding the Fourth Proportional to 6,589.76, 9,093.68 and 3,936.56

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Solution

The fourth proportional to 6,589.76, 9,093.68 and 3,936.56 is: 5,432.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,589.76 : 9,093.68 = 3,936.56 : x
  2. Step 2: Convert to fraction form
    6,589.76/9,093.68 = 3,936.56/x
  3. Step 3: Cross multiply
    6,589.76x = 9,093.68 × 3,936.56
  4. Step 4: Simplify right side
    6,589.76x = 35,797,816.94
  5. Step 5: Solve for x
    x = 35,797,816.94/6,589.76
  6. Step 6: Final answer
    x = 5,432.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.