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Finding the Third Proportional to 18,713 and 25,639

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Solution

The third proportional to 18,713 and 25,639 is: 35,128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713 : 25,639 = 25,639 : x
  2. Step 2: Convert to fraction form
    18,713/25,639 = 25,639/x
  3. Step 3: Cross multiply
    18,713x = 25,639 × 25,639
  4. Step 4: Simplify right side
    18,713x = 657,358,321
  5. Step 5: Solve for x
    x = 657,358,321/18,713
  6. Step 6: Final answer
    x = 35,128.43

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.