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Finding the Fourth Proportional to 3,734.08, 5,600.80 and 960.64

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Solution

The fourth proportional to 3,734.08, 5,600.80 and 960.64 is: 1,440.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,734.08 : 5,600.80 = 960.64 : x
  2. Step 2: Convert to fraction form
    3,734.08/5,600.80 = 960.64/x
  3. Step 3: Cross multiply
    3,734.08x = 5,600.80 × 960.64
  4. Step 4: Simplify right side
    3,734.08x = 5,380,352.51
  5. Step 5: Solve for x
    x = 5,380,352.51/3,734.08
  6. Step 6: Final answer
    x = 1,440.88

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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.