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Finding the Fourth Proportional to 55,712.60, 83,573.60 and 18,272.44

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Solution

The fourth proportional to 55,712.60, 83,573.60 and 18,272.44 is: 27,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,712.60 : 83,573.60 = 18,272.44 : x
  2. Step 2: Convert to fraction form
    55,712.60/83,573.60 = 18,272.44/x
  3. Step 3: Cross multiply
    55,712.60x = 83,573.60 × 18,272.44
  4. Step 4: Simplify right side
    55,712.60x = 1,527,093,591.58
  5. Step 5: Solve for x
    x = 1,527,093,591.58/55,712.60
  6. Step 6: Final answer
    x = 27,410.20

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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.