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Finding the Third Proportional to 13,810 and 25,660

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Solution

The third proportional to 13,810 and 25,660 is: 47,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,810 : 25,660 = 25,660 : x
  2. Step 2: Convert to fraction form
    13,810/25,660 = 25,660/x
  3. Step 3: Cross multiply
    13,810x = 25,660 × 25,660
  4. Step 4: Simplify right side
    13,810x = 658,435,600
  5. Step 5: Solve for x
    x = 658,435,600/13,810
  6. Step 6: Final answer
    x = 47,678.18

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.