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Finding the Fourth Proportional to 18,461.61, 27,696.42 and 5,982.89

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Solution

The fourth proportional to 18,461.61, 27,696.42 and 5,982.89 is: 8,975.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.61 : 27,696.42 = 5,982.89 : x
  2. Step 2: Convert to fraction form
    18,461.61/27,696.42 = 5,982.89/x
  3. Step 3: Cross multiply
    18,461.61x = 27,696.42 × 5,982.89
  4. Step 4: Simplify right side
    18,461.61x = 165,704,495.77
  5. Step 5: Solve for x
    x = 165,704,495.77/18,461.61
  6. Step 6: Final answer
    x = 8,975.63

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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.