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Finding the Fourth Proportional to 19,274.44, 28,893.90 and 6,787.66

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Solution

The fourth proportional to 19,274.44, 28,893.90 and 6,787.66 is: 10,175.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,274.44 : 28,893.90 = 6,787.66 : x
  2. Step 2: Convert to fraction form
    19,274.44/28,893.90 = 6,787.66/x
  3. Step 3: Cross multiply
    19,274.44x = 28,893.90 × 6,787.66
  4. Step 4: Simplify right side
    19,274.44x = 196,121,969.27
  5. Step 5: Solve for x
    x = 196,121,969.27/19,274.44
  6. Step 6: Final answer
    x = 10,175.24

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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.