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Finding the Fourth Proportional to 6,984.44, 9,640.79 and 4,473.31

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Solution

The fourth proportional to 6,984.44, 9,640.79 and 4,473.31 is: 6,174.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,984.44 : 9,640.79 = 4,473.31 : x
  2. Step 2: Convert to fraction form
    6,984.44/9,640.79 = 4,473.31/x
  3. Step 3: Cross multiply
    6,984.44x = 9,640.79 × 4,473.31
  4. Step 4: Simplify right side
    6,984.44x = 43,126,242.31
  5. Step 5: Solve for x
    x = 43,126,242.31/6,984.44
  6. Step 6: Final answer
    x = 6,174.62

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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.