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Finding the Fourth Proportional to 5,757.60, 7,944.72 and 3,367.20

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Solution

The fourth proportional to 5,757.60, 7,944.72 and 3,367.20 is: 4,646.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,757.60 : 7,944.72 = 3,367.20 : x
  2. Step 2: Convert to fraction form
    5,757.60/7,944.72 = 3,367.20/x
  3. Step 3: Cross multiply
    5,757.60x = 7,944.72 × 3,367.20
  4. Step 4: Simplify right side
    5,757.60x = 26,751,461.18
  5. Step 5: Solve for x
    x = 26,751,461.18/5,757.60
  6. Step 6: Final answer
    x = 4,646.29

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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.