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Finding the Third Proportional to 30,191 and 65,569

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Solution

The third proportional to 30,191 and 65,569 is: 142,403.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,191 : 65,569 = 65,569 : x
  2. Step 2: Convert to fraction form
    30,191/65,569 = 65,569/x
  3. Step 3: Cross multiply
    30,191x = 65,569 × 65,569
  4. Step 4: Simplify right side
    30,191x = 4,299,293,761
  5. Step 5: Solve for x
    x = 4,299,293,761/30,191
  6. Step 6: Final answer
    x = 142,403.16

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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.