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Finding the Third Proportional to 17,621 and 25,639

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Solution

The third proportional to 17,621 and 25,639 is: 37,305.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,621 : 25,639 = 25,639 : x
  2. Step 2: Convert to fraction form
    17,621/25,639 = 25,639/x
  3. Step 3: Cross multiply
    17,621x = 25,639 × 25,639
  4. Step 4: Simplify right side
    17,621x = 657,358,321
  5. Step 5: Solve for x
    x = 657,358,321/17,621
  6. Step 6: Final answer
    x = 37,305.39

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.