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Finding the Fourth Proportional to 8,371.32, 11,553.06 and 4,645.32

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Solution

The fourth proportional to 8,371.32, 11,553.06 and 4,645.32 is: 6,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.32 : 11,553.06 = 4,645.32 : x
  2. Step 2: Convert to fraction form
    8,371.32/11,553.06 = 4,645.32/x
  3. Step 3: Cross multiply
    8,371.32x = 11,553.06 × 4,645.32
  4. Step 4: Simplify right side
    8,371.32x = 53,667,660.68
  5. Step 5: Solve for x
    x = 53,667,660.68/8,371.32
  6. Step 6: Final answer
    x = 6,410.90

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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.