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Finding the Fourth Proportional to 11,892.70, 16,419.99 and 10,629.73

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Solution

The fourth proportional to 11,892.70, 16,419.99 and 10,629.73 is: 14,676.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.70 : 16,419.99 = 10,629.73 : x
  2. Step 2: Convert to fraction form
    11,892.70/16,419.99 = 10,629.73/x
  3. Step 3: Cross multiply
    11,892.70x = 16,419.99 × 10,629.73
  4. Step 4: Simplify right side
    11,892.70x = 174,540,060.30
  5. Step 5: Solve for x
    x = 174,540,060.30/11,892.70
  6. Step 6: Final answer
    x = 14,676.24

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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.