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Finding the Fourth Proportional to 18,474.16, 27,717.16 and 6,619.94

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Solution

The fourth proportional to 18,474.16, 27,717.16 and 6,619.94 is: 9,932.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.16 : 27,717.16 = 6,619.94 : x
  2. Step 2: Convert to fraction form
    18,474.16/27,717.16 = 6,619.94/x
  3. Step 3: Cross multiply
    18,474.16x = 27,717.16 × 6,619.94
  4. Step 4: Simplify right side
    18,474.16x = 183,485,936.17
  5. Step 5: Solve for x
    x = 183,485,936.17/18,474.16
  6. Step 6: Final answer
    x = 9,932.03

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Why These Related Problems?

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