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Finding the Third Proportional to 17,740 and 38,804

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Solution

The third proportional to 17,740 and 38,804 is: 84,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,740 : 38,804 = 38,804 : x
  2. Step 2: Convert to fraction form
    17,740/38,804 = 38,804/x
  3. Step 3: Cross multiply
    17,740x = 38,804 × 38,804
  4. Step 4: Simplify right side
    17,740x = 1,505,750,416
  5. Step 5: Solve for x
    x = 1,505,750,416/17,740
  6. Step 6: Final answer
    x = 84,878.83

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.