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Finding the Fourth Proportional to 21,029.09, 29,020.11 and 11,597.64

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Solution

The fourth proportional to 21,029.09, 29,020.11 and 11,597.64 is: 16,004.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.09 : 29,020.11 = 11,597.64 : x
  2. Step 2: Convert to fraction form
    21,029.09/29,020.11 = 11,597.64/x
  3. Step 3: Cross multiply
    21,029.09x = 29,020.11 × 11,597.64
  4. Step 4: Simplify right side
    21,029.09x = 336,564,788.54
  5. Step 5: Solve for x
    x = 336,564,788.54/21,029.09
  6. Step 6: Final answer
    x = 16,004.73

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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.