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Finding the Third Proportional to 13,740 and 18,614

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Solution

The third proportional to 13,740 and 18,614 is: 25,216.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740 : 18,614 = 18,614 : x
  2. Step 2: Convert to fraction form
    13,740/18,614 = 18,614/x
  3. Step 3: Cross multiply
    13,740x = 18,614 × 18,614
  4. Step 4: Simplify right side
    13,740x = 346,480,996
  5. Step 5: Solve for x
    x = 346,480,996/13,740
  6. Step 6: Final answer
    x = 25,216.96

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.