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Finding the Fourth Proportional to 7,213.32, 9,954.41 and 3,901.32

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Solution

The fourth proportional to 7,213.32, 9,954.41 and 3,901.32 is: 5,383.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.32 : 9,954.41 = 3,901.32 : x
  2. Step 2: Convert to fraction form
    7,213.32/9,954.41 = 3,901.32/x
  3. Step 3: Cross multiply
    7,213.32x = 9,954.41 × 3,901.32
  4. Step 4: Simplify right side
    7,213.32x = 38,835,269.54
  5. Step 5: Solve for x
    x = 38,835,269.54/7,213.32
  6. Step 6: Final answer
    x = 5,383.83

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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.