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Finding the Fourth Proportional to 7,003.24, 9,664.38 and 3,859.48

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Solution

The fourth proportional to 7,003.24, 9,664.38 and 3,859.48 is: 5,326.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003.24 : 9,664.38 = 3,859.48 : x
  2. Step 2: Convert to fraction form
    7,003.24/9,664.38 = 3,859.48/x
  3. Step 3: Cross multiply
    7,003.24x = 9,664.38 × 3,859.48
  4. Step 4: Simplify right side
    7,003.24x = 37,299,481.32
  5. Step 5: Solve for x
    x = 37,299,481.32/7,003.24
  6. Step 6: Final answer
    x = 5,326.03

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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.