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Finding the Fourth Proportional to 18,644.83, 25,729.86 and 10,261.33

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Solution

The fourth proportional to 18,644.83, 25,729.86 and 10,261.33 is: 14,160.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.83 : 25,729.86 = 10,261.33 : x
  2. Step 2: Convert to fraction form
    18,644.83/25,729.86 = 10,261.33/x
  3. Step 3: Cross multiply
    18,644.83x = 25,729.86 × 10,261.33
  4. Step 4: Simplify right side
    18,644.83x = 264,022,455.66
  5. Step 5: Solve for x
    x = 264,022,455.66/18,644.83
  6. Step 6: Final answer
    x = 14,160.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.