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Finding the Third Proportional to 13,698 and 16,461

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Solution

The third proportional to 13,698 and 16,461 is: 19,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698 : 16,461 = 16,461 : x
  2. Step 2: Convert to fraction form
    13,698/16,461 = 16,461/x
  3. Step 3: Cross multiply
    13,698x = 16,461 × 16,461
  4. Step 4: Simplify right side
    13,698x = 270,964,521
  5. Step 5: Solve for x
    x = 270,964,521/13,698
  6. Step 6: Final answer
    x = 19,781.32

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Why These Related Problems?

These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.