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Finding the Fourth Proportional to 18,377.54, 27,575.43 and 7,283.98

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Solution

The fourth proportional to 18,377.54, 27,575.43 and 7,283.98 is: 10,929.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.54 : 27,575.43 = 7,283.98 : x
  2. Step 2: Convert to fraction form
    18,377.54/27,575.43 = 7,283.98/x
  3. Step 3: Cross multiply
    18,377.54x = 27,575.43 × 7,283.98
  4. Step 4: Simplify right side
    18,377.54x = 200,858,844.19
  5. Step 5: Solve for x
    x = 200,858,844.19/18,377.54
  6. Step 6: Final answer
    x = 10,929.59

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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.