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Finding the Fourth Proportional to 38,481.60, 57,722.40 and 17,745.60

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Solution

The fourth proportional to 38,481.60, 57,722.40 and 17,745.60 is: 26,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,481.60 : 57,722.40 = 17,745.60 : x
  2. Step 2: Convert to fraction form
    38,481.60/57,722.40 = 17,745.60/x
  3. Step 3: Cross multiply
    38,481.60x = 57,722.40 × 17,745.60
  4. Step 4: Simplify right side
    38,481.60x = 1,024,318,621.44
  5. Step 5: Solve for x
    x = 1,024,318,621.44/38,481.60
  6. Step 6: Final answer
    x = 26,618.40

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Similar ratio
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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.