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Finding the Fourth Proportional to 57,099.60, 85,654.80 and 15,546.60

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Solution

The fourth proportional to 57,099.60, 85,654.80 and 15,546.60 is: 23,321.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,099.60 : 85,654.80 = 15,546.60 : x
  2. Step 2: Convert to fraction form
    57,099.60/85,654.80 = 15,546.60/x
  3. Step 3: Cross multiply
    57,099.60x = 85,654.80 × 15,546.60
  4. Step 4: Simplify right side
    57,099.60x = 1,331,640,913.68
  5. Step 5: Solve for x
    x = 1,331,640,913.68/57,099.60
  6. Step 6: Final answer
    x = 23,321.37

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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.