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Finding the Fourth Proportional to 6,728.37, 9,285.13 and 3,744.46

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Solution

The fourth proportional to 6,728.37, 9,285.13 and 3,744.46 is: 5,167.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.37 : 9,285.13 = 3,744.46 : x
  2. Step 2: Convert to fraction form
    6,728.37/9,285.13 = 3,744.46/x
  3. Step 3: Cross multiply
    6,728.37x = 9,285.13 × 3,744.46
  4. Step 4: Simplify right side
    6,728.37x = 34,767,797.88
  5. Step 5: Solve for x
    x = 34,767,797.88/6,728.37
  6. Step 6: Final answer
    x = 5,167.34

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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.