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Finding the Fourth Proportional to 5,393.92, 7,444.56 and 5,147.68

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Solution

The fourth proportional to 5,393.92, 7,444.56 and 5,147.68 is: 7,104.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.92 : 7,444.56 = 5,147.68 : x
  2. Step 2: Convert to fraction form
    5,393.92/7,444.56 = 5,147.68/x
  3. Step 3: Cross multiply
    5,393.92x = 7,444.56 × 5,147.68
  4. Step 4: Simplify right side
    5,393.92x = 38,322,212.62
  5. Step 5: Solve for x
    x = 38,322,212.62/5,393.92
  6. Step 6: Final answer
    x = 7,104.71

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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.