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Finding the Third Proportional to 11,056.50 and 20,427.19

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Solution

The third proportional to 11,056.50 and 20,427.19 is: 37,739.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,056.50 : 20,427.19 = 20,427.19 : x
  2. Step 2: Convert to fraction form
    11,056.50/20,427.19 = 20,427.19/x
  3. Step 3: Cross multiply
    11,056.50x = 20,427.19 × 20,427.19
  4. Step 4: Simplify right side
    11,056.50x = 417,269,989.16
  5. Step 5: Solve for x
    x = 417,269,989.16/11,056.50
  6. Step 6: Final answer
    x = 37,739.79

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.