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Finding the Third Proportional to 19,017 and 38,610

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Solution

The third proportional to 19,017 and 38,610 is: 78,389.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,017 : 38,610 = 38,610 : x
  2. Step 2: Convert to fraction form
    19,017/38,610 = 38,610/x
  3. Step 3: Cross multiply
    19,017x = 38,610 × 38,610
  4. Step 4: Simplify right side
    19,017x = 1,490,732,100
  5. Step 5: Solve for x
    x = 1,490,732,100/19,017
  6. Step 6: Final answer
    x = 78,389.45

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.