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Finding the Third Proportional to 19,369 and 29,930

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Solution

The third proportional to 19,369 and 29,930 is: 46,249.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,369 : 29,930 = 29,930 : x
  2. Step 2: Convert to fraction form
    19,369/29,930 = 29,930/x
  3. Step 3: Cross multiply
    19,369x = 29,930 × 29,930
  4. Step 4: Simplify right side
    19,369x = 895,804,900
  5. Step 5: Solve for x
    x = 895,804,900/19,369
  6. Step 6: Final answer
    x = 46,249.41

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.