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Finding the Fourth Proportional to 12,997.01, 17,919.60 and 10,846.64

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Solution

The fourth proportional to 12,997.01, 17,919.60 and 10,846.64 is: 14,954.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.01 : 17,919.60 = 10,846.64 : x
  2. Step 2: Convert to fraction form
    12,997.01/17,919.60 = 10,846.64/x
  3. Step 3: Cross multiply
    12,997.01x = 17,919.60 × 10,846.64
  4. Step 4: Simplify right side
    12,997.01x = 194,367,383.98
  5. Step 5: Solve for x
    x = 194,367,383.98/12,997.01
  6. Step 6: Final answer
    x = 14,954.78

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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.