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Finding the Third Proportional to 19,874 and 29,230

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Solution

The third proportional to 19,874 and 29,230 is: 42,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874 : 29,230 = 29,230 : x
  2. Step 2: Convert to fraction form
    19,874/29,230 = 29,230/x
  3. Step 3: Cross multiply
    19,874x = 29,230 × 29,230
  4. Step 4: Simplify right side
    19,874x = 854,392,900
  5. Step 5: Solve for x
    x = 854,392,900/19,874
  6. Step 6: Final answer
    x = 42,990.49

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.