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Finding the Fourth Proportional to 6,984.56, 9,640.96 and 4,473.44

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Solution

The fourth proportional to 6,984.56, 9,640.96 and 4,473.44 is: 6,174.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,984.56 : 9,640.96 = 4,473.44 : x
  2. Step 2: Convert to fraction form
    6,984.56/9,640.96 = 4,473.44/x
  3. Step 3: Cross multiply
    6,984.56x = 9,640.96 × 4,473.44
  4. Step 4: Simplify right side
    6,984.56x = 43,128,232.87
  5. Step 5: Solve for x
    x = 43,128,232.87/6,984.56
  6. Step 6: Final answer
    x = 6,174.79

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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.