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Finding the Fourth Proportional to 64,268.82, 96,405.99 and 19,896.39

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Solution

The fourth proportional to 64,268.82, 96,405.99 and 19,896.39 is: 29,845.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,268.82 : 96,405.99 = 19,896.39 : x
  2. Step 2: Convert to fraction form
    64,268.82/96,405.99 = 19,896.39/x
  3. Step 3: Cross multiply
    64,268.82x = 96,405.99 × 19,896.39
  4. Step 4: Simplify right side
    64,268.82x = 1,918,131,175.38
  5. Step 5: Solve for x
    x = 1,918,131,175.38/64,268.82
  6. Step 6: Final answer
    x = 29,845.44

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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.