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Finding the Fourth Proportional to 21,067.46, 29,073.11 and 11,636.01

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Solution

The fourth proportional to 21,067.46, 29,073.11 and 11,636.01 is: 16,057.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.46 : 29,073.11 = 11,636.01 : x
  2. Step 2: Convert to fraction form
    21,067.46/29,073.11 = 11,636.01/x
  3. Step 3: Cross multiply
    21,067.46x = 29,073.11 × 11,636.01
  4. Step 4: Simplify right side
    21,067.46x = 338,294,940.51
  5. Step 5: Solve for x
    x = 338,294,940.51/21,067.46
  6. Step 6: Final answer
    x = 16,057.70

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Why These Related Problems?

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