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Finding the Third Proportional to 9,242 and 18,970

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Solution

The third proportional to 9,242 and 18,970 is: 38,937.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,242 : 18,970 = 18,970 : x
  2. Step 2: Convert to fraction form
    9,242/18,970 = 18,970/x
  3. Step 3: Cross multiply
    9,242x = 18,970 × 18,970
  4. Step 4: Simplify right side
    9,242x = 359,860,900
  5. Step 5: Solve for x
    x = 359,860,900/9,242
  6. Step 6: Final answer
    x = 38,937.56

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.