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Finding the Third Proportional to 28,675.69 and 61,965

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Solution

The third proportional to 28,675.69 and 61,965 is: 133,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,675.69 : 61,965 = 61,965 : x
  2. Step 2: Convert to fraction form
    28,675.69/61,965 = 61,965/x
  3. Step 3: Cross multiply
    28,675.69x = 61,965 × 61,965
  4. Step 4: Simplify right side
    28,675.69x = 3,839,661,225
  5. Step 5: Solve for x
    x = 3,839,661,225/28,675.69
  6. Step 6: Final answer
    x = 133,899.54

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.