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Finding the Third Proportional to 13,830 and 19,017

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Solution

The third proportional to 13,830 and 19,017 is: 26,149.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830 : 19,017 = 19,017 : x
  2. Step 2: Convert to fraction form
    13,830/19,017 = 19,017/x
  3. Step 3: Cross multiply
    13,830x = 19,017 × 19,017
  4. Step 4: Simplify right side
    13,830x = 361,646,289
  5. Step 5: Solve for x
    x = 361,646,289/13,830
  6. Step 6: Final answer
    x = 26,149.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.