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Finding the Fourth Proportional to 12,850.92, 19,297.31 and 7,951.77

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Solution

The fourth proportional to 12,850.92, 19,297.31 and 7,951.77 is: 11,940.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,850.92 : 19,297.31 = 7,951.77 : x
  2. Step 2: Convert to fraction form
    12,850.92/19,297.31 = 7,951.77/x
  3. Step 3: Cross multiply
    12,850.92x = 19,297.31 × 7,951.77
  4. Step 4: Simplify right side
    12,850.92x = 153,447,730.98
  5. Step 5: Solve for x
    x = 153,447,730.98/12,850.92
  6. Step 6: Final answer
    x = 11,940.60

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1.5x scale

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.