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Finding the Fourth Proportional to 7,120.92, 9,824.94 and 4,324.44

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Solution

The fourth proportional to 7,120.92, 9,824.94 and 4,324.44 is: 5,966.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.92 : 9,824.94 = 4,324.44 : x
  2. Step 2: Convert to fraction form
    7,120.92/9,824.94 = 4,324.44/x
  3. Step 3: Cross multiply
    7,120.92x = 9,824.94 × 4,324.44
  4. Step 4: Simplify right side
    7,120.92x = 42,487,363.53
  5. Step 5: Solve for x
    x = 42,487,363.53/7,120.92
  6. Step 6: Final answer
    x = 5,966.56

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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.