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Finding the Fourth Proportional to 18,641.28, 27,961.93 and 6,795.95

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Solution

The fourth proportional to 18,641.28, 27,961.93 and 6,795.95 is: 10,193.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.28 : 27,961.93 = 6,795.95 : x
  2. Step 2: Convert to fraction form
    18,641.28/27,961.93 = 6,795.95/x
  3. Step 3: Cross multiply
    18,641.28x = 27,961.93 × 6,795.95
  4. Step 4: Simplify right side
    18,641.28x = 190,027,721.38
  5. Step 5: Solve for x
    x = 190,027,721.38/18,641.28
  6. Step 6: Final answer
    x = 10,193.92

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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.