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Finding the Fourth Proportional to 16,968.54, 23,415.79 and 9,414.78

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Solution

The fourth proportional to 16,968.54, 23,415.79 and 9,414.78 is: 12,991.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,968.54 : 23,415.79 = 9,414.78 : x
  2. Step 2: Convert to fraction form
    16,968.54/23,415.79 = 9,414.78/x
  3. Step 3: Cross multiply
    16,968.54x = 23,415.79 × 9,414.78
  4. Step 4: Simplify right side
    16,968.54x = 220,454,511.38
  5. Step 5: Solve for x
    x = 220,454,511.38/16,968.54
  6. Step 6: Final answer
    x = 12,991.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.