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Finding the Fourth Proportional to 12,272.68, 16,936.74 and 7,234.60

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Solution

The fourth proportional to 12,272.68, 16,936.74 and 7,234.60 is: 9,984.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.68 : 16,936.74 = 7,234.60 : x
  2. Step 2: Convert to fraction form
    12,272.68/16,936.74 = 7,234.60/x
  3. Step 3: Cross multiply
    12,272.68x = 16,936.74 × 7,234.60
  4. Step 4: Simplify right side
    12,272.68x = 122,530,539.20
  5. Step 5: Solve for x
    x = 122,530,539.20/12,272.68
  6. Step 6: Final answer
    x = 9,984.01

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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.