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Finding the Third Proportional to 19,566 and 38,151

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Solution

The third proportional to 19,566 and 38,151 is: 74,389.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,566 : 38,151 = 38,151 : x
  2. Step 2: Convert to fraction form
    19,566/38,151 = 38,151/x
  3. Step 3: Cross multiply
    19,566x = 38,151 × 38,151
  4. Step 4: Simplify right side
    19,566x = 1,455,498,801
  5. Step 5: Solve for x
    x = 1,455,498,801/19,566
  6. Step 6: Final answer
    x = 74,389.19

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.