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Finding the Fourth Proportional to 18,843.70, 28,266 and 5,696.02

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Solution

The fourth proportional to 18,843.70, 28,266 and 5,696.02 is: 8,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.70 : 28,266 = 5,696.02 : x
  2. Step 2: Convert to fraction form
    18,843.70/28,266 = 5,696.02/x
  3. Step 3: Cross multiply
    18,843.70x = 28,266 × 5,696.02
  4. Step 4: Simplify right side
    18,843.70x = 161,003,701.32
  5. Step 5: Solve for x
    x = 161,003,701.32/18,843.70
  6. Step 6: Final answer
    x = 8,544.17

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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.