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Finding the Third Proportional to 8,725 and 18,937

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Solution

The third proportional to 8,725 and 18,937 is: 41,101.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725 : 18,937 = 18,937 : x
  2. Step 2: Convert to fraction form
    8,725/18,937 = 18,937/x
  3. Step 3: Cross multiply
    8,725x = 18,937 × 18,937
  4. Step 4: Simplify right side
    8,725x = 358,609,969
  5. Step 5: Solve for x
    x = 358,609,969/8,725
  6. Step 6: Final answer
    x = 41,101.43

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.