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Finding the Fourth Proportional to 6,720.56, 9,273.96 and 3,736.24

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Solution

The fourth proportional to 6,720.56, 9,273.96 and 3,736.24 is: 5,155.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.56 : 9,273.96 = 3,736.24 : x
  2. Step 2: Convert to fraction form
    6,720.56/9,273.96 = 3,736.24/x
  3. Step 3: Cross multiply
    6,720.56x = 9,273.96 × 3,736.24
  4. Step 4: Simplify right side
    6,720.56x = 34,649,740.31
  5. Step 5: Solve for x
    x = 34,649,740.31/6,720.56
  6. Step 6: Final answer
    x = 5,155.78

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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.