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Finding the Fourth Proportional to 16,908.81, 25,367.54 and 9,894.73

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Solution

The fourth proportional to 16,908.81, 25,367.54 and 9,894.73 is: 14,844.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,908.81 : 25,367.54 = 9,894.73 : x
  2. Step 2: Convert to fraction form
    16,908.81/25,367.54 = 9,894.73/x
  3. Step 3: Cross multiply
    16,908.81x = 25,367.54 × 9,894.73
  4. Step 4: Simplify right side
    16,908.81x = 251,004,959.06
  5. Step 5: Solve for x
    x = 251,004,959.06/16,908.81
  6. Step 6: Final answer
    x = 14,844.63

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.