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Finding the Fourth Proportional to 17,787.63, 26,685.42 and 6,694.41

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Solution

The fourth proportional to 17,787.63, 26,685.42 and 6,694.41 is: 10,043.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,787.63 : 26,685.42 = 6,694.41 : x
  2. Step 2: Convert to fraction form
    17,787.63/26,685.42 = 6,694.41/x
  3. Step 3: Cross multiply
    17,787.63x = 26,685.42 × 6,694.41
  4. Step 4: Simplify right side
    17,787.63x = 178,643,142.50
  5. Step 5: Solve for x
    x = 178,643,142.50/17,787.63
  6. Step 6: Final answer
    x = 10,043.11

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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.