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Finding the Third Proportional to 7,189 and 15,242

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Solution

The third proportional to 7,189 and 15,242 is: 32,315.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189 : 15,242 = 15,242 : x
  2. Step 2: Convert to fraction form
    7,189/15,242 = 15,242/x
  3. Step 3: Cross multiply
    7,189x = 15,242 × 15,242
  4. Step 4: Simplify right side
    7,189x = 232,318,564
  5. Step 5: Solve for x
    x = 232,318,564/7,189
  6. Step 6: Final answer
    x = 32,315.84

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.