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Finding the Fourth Proportional to 55,906.60, 83,835.60 and 18,452.20

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Solution

The fourth proportional to 55,906.60, 83,835.60 and 18,452.20 is: 27,670.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,906.60 : 83,835.60 = 18,452.20 : x
  2. Step 2: Convert to fraction form
    55,906.60/83,835.60 = 18,452.20/x
  3. Step 3: Cross multiply
    55,906.60x = 83,835.60 × 18,452.20
  4. Step 4: Simplify right side
    55,906.60x = 1,546,951,258.32
  5. Step 5: Solve for x
    x = 1,546,951,258.32/55,906.60
  6. Step 6: Final answer
    x = 27,670.28

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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.