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Finding the Fourth Proportional to 6,372.92, 8,795.20 and 3,721.18

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Solution

The fourth proportional to 6,372.92, 8,795.20 and 3,721.18 is: 5,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,372.92 : 8,795.20 = 3,721.18 : x
  2. Step 2: Convert to fraction form
    6,372.92/8,795.20 = 3,721.18/x
  3. Step 3: Cross multiply
    6,372.92x = 8,795.20 × 3,721.18
  4. Step 4: Simplify right side
    6,372.92x = 32,728,522.34
  5. Step 5: Solve for x
    x = 32,728,522.34/6,372.92
  6. Step 6: Final answer
    x = 5,135.56

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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.