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Finding the Fourth Proportional to 7,049.92, 10,578.38 and 3,153.28

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Solution

The fourth proportional to 7,049.92, 10,578.38 and 3,153.28 is: 4,731.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,049.92 : 10,578.38 = 3,153.28 : x
  2. Step 2: Convert to fraction form
    7,049.92/10,578.38 = 3,153.28/x
  3. Step 3: Cross multiply
    7,049.92x = 10,578.38 × 3,153.28
  4. Step 4: Simplify right side
    7,049.92x = 33,356,594.09
  5. Step 5: Solve for x
    x = 33,356,594.09/7,049.92
  6. Step 6: Final answer
    x = 4,731.49

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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.