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Finding the Third Proportional to 18,740 and 29,230

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Solution

The third proportional to 18,740 and 29,230 is: 45,591.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740 : 29,230 = 29,230 : x
  2. Step 2: Convert to fraction form
    18,740/29,230 = 29,230/x
  3. Step 3: Cross multiply
    18,740x = 29,230 × 29,230
  4. Step 4: Simplify right side
    18,740x = 854,392,900
  5. Step 5: Solve for x
    x = 854,392,900/18,740
  6. Step 6: Final answer
    x = 45,591.94

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.