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Finding the Fourth Proportional to 36,125.60, 54,166.80 and 18,629.60

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Solution

The fourth proportional to 36,125.60, 54,166.80 and 18,629.60 is: 27,933.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,125.60 : 54,166.80 = 18,629.60 : x
  2. Step 2: Convert to fraction form
    36,125.60/54,166.80 = 18,629.60/x
  3. Step 3: Cross multiply
    36,125.60x = 54,166.80 × 18,629.60
  4. Step 4: Simplify right side
    36,125.60x = 1,009,105,817.28
  5. Step 5: Solve for x
    x = 1,009,105,817.28/36,125.60
  6. Step 6: Final answer
    x = 27,933.26

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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.