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Finding the Fourth Proportional to 21,052.28, 29,051.16 and 12,093.48

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Solution

The fourth proportional to 21,052.28, 29,051.16 and 12,093.48 is: 16,688.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.28 : 29,051.16 = 12,093.48 : x
  2. Step 2: Convert to fraction form
    21,052.28/29,051.16 = 12,093.48/x
  3. Step 3: Cross multiply
    21,052.28x = 29,051.16 × 12,093.48
  4. Step 4: Simplify right side
    21,052.28x = 351,329,622.44
  5. Step 5: Solve for x
    x = 351,329,622.44/21,052.28
  6. Step 6: Final answer
    x = 16,688.44

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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.