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Finding the Fourth Proportional to 5,627.70, 7,764.93 and 3,268.44

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Solution

The fourth proportional to 5,627.70, 7,764.93 and 3,268.44 is: 4,509.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.70 : 7,764.93 = 3,268.44 : x
  2. Step 2: Convert to fraction form
    5,627.70/7,764.93 = 3,268.44/x
  3. Step 3: Cross multiply
    5,627.70x = 7,764.93 × 3,268.44
  4. Step 4: Simplify right side
    5,627.70x = 25,379,207.81
  5. Step 5: Solve for x
    x = 25,379,207.81/5,627.70
  6. Step 6: Final answer
    x = 4,509.69

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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.