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Finding the Fourth Proportional to 21,273.88, 29,355.06 and 11,841.16

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Solution

The fourth proportional to 21,273.88, 29,355.06 and 11,841.16 is: 16,339.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.88 : 29,355.06 = 11,841.16 : x
  2. Step 2: Convert to fraction form
    21,273.88/29,355.06 = 11,841.16/x
  3. Step 3: Cross multiply
    21,273.88x = 29,355.06 × 11,841.16
  4. Step 4: Simplify right side
    21,273.88x = 347,597,962.27
  5. Step 5: Solve for x
    x = 347,597,962.27/21,273.88
  6. Step 6: Final answer
    x = 16,339.19

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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.