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Finding the Fourth Proportional to 5,489.44, 7,582.80 and 5,230.24

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Solution

The fourth proportional to 5,489.44, 7,582.80 and 5,230.24 is: 7,224.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.44 : 7,582.80 = 5,230.24 : x
  2. Step 2: Convert to fraction form
    5,489.44/7,582.80 = 5,230.24/x
  3. Step 3: Cross multiply
    5,489.44x = 7,582.80 × 5,230.24
  4. Step 4: Simplify right side
    5,489.44x = 39,659,863.87
  5. Step 5: Solve for x
    x = 39,659,863.87/5,489.44
  6. Step 6: Final answer
    x = 7,224.76

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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.