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Finding the Fourth Proportional to 5,721.32, 8,581.94 and 3,759.32

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Solution

The fourth proportional to 5,721.32, 8,581.94 and 3,759.32 is: 5,638.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.32 : 8,581.94 = 3,759.32 : x
  2. Step 2: Convert to fraction form
    5,721.32/8,581.94 = 3,759.32/x
  3. Step 3: Cross multiply
    5,721.32x = 8,581.94 × 3,759.32
  4. Step 4: Simplify right side
    5,721.32x = 32,262,258.68
  5. Step 5: Solve for x
    x = 32,262,258.68/5,721.32
  6. Step 6: Final answer
    x = 5,638.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.