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Finding the Fourth Proportional to 5,812.92, 8,721.72 and 3,732.21

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Solution

The fourth proportional to 5,812.92, 8,721.72 and 3,732.21 is: 5,599.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.92 : 8,721.72 = 3,732.21 : x
  2. Step 2: Convert to fraction form
    5,812.92/8,721.72 = 3,732.21/x
  3. Step 3: Cross multiply
    5,812.92x = 8,721.72 × 3,732.21
  4. Step 4: Simplify right side
    5,812.92x = 32,551,290.60
  5. Step 5: Solve for x
    x = 32,551,290.60/5,812.92
  6. Step 6: Final answer
    x = 5,599.82

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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.