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Finding the Fourth Proportional to 5,626.64, 7,764.18 and 3,268.32

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Solution

The fourth proportional to 5,626.64, 7,764.18 and 3,268.32 is: 4,509.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,626.64 : 7,764.18 = 3,268.32 : x
  2. Step 2: Convert to fraction form
    5,626.64/7,764.18 = 3,268.32/x
  3. Step 3: Cross multiply
    5,626.64x = 7,764.18 × 3,268.32
  4. Step 4: Simplify right side
    5,626.64x = 25,375,824.78
  5. Step 5: Solve for x
    x = 25,375,824.78/5,626.64
  6. Step 6: Final answer
    x = 4,509.94

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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.