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Finding the Fourth Proportional to 17,911.72, 24,717.72 and 9,954.64

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Solution

The fourth proportional to 17,911.72, 24,717.72 and 9,954.64 is: 13,737.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,911.72 : 24,717.72 = 9,954.64 : x
  2. Step 2: Convert to fraction form
    17,911.72/24,717.72 = 9,954.64/x
  3. Step 3: Cross multiply
    17,911.72x = 24,717.72 × 9,954.64
  4. Step 4: Simplify right side
    17,911.72x = 246,056,004.22
  5. Step 5: Solve for x
    x = 246,056,004.22/17,911.72
  6. Step 6: Final answer
    x = 13,737.15

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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.