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Finding the Fourth Proportional to 5,608.25, 7,738.80 and 3,454.45

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Solution

The fourth proportional to 5,608.25, 7,738.80 and 3,454.45 is: 4,766.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.25 : 7,738.80 = 3,454.45 : x
  2. Step 2: Convert to fraction form
    5,608.25/7,738.80 = 3,454.45/x
  3. Step 3: Cross multiply
    5,608.25x = 7,738.80 × 3,454.45
  4. Step 4: Simplify right side
    5,608.25x = 26,733,297.66
  5. Step 5: Solve for x
    x = 26,733,297.66/5,608.25
  6. Step 6: Final answer
    x = 4,766.78

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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.