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Finding the Fourth Proportional to 3,788.96, 5,229.60 and 2,393.60

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Solution

The fourth proportional to 3,788.96, 5,229.60 and 2,393.60 is: 3,303.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.96 : 5,229.60 = 2,393.60 : x
  2. Step 2: Convert to fraction form
    3,788.96/5,229.60 = 2,393.60/x
  3. Step 3: Cross multiply
    3,788.96x = 5,229.60 × 2,393.60
  4. Step 4: Simplify right side
    3,788.96x = 12,517,570.56
  5. Step 5: Solve for x
    x = 12,517,570.56/3,788.96
  6. Step 6: Final answer
    x = 3,303.70

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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.