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Finding the Third Proportional to 11,780.75 and 25,639.75

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Solution

The third proportional to 11,780.75 and 25,639.75 is: 55,802.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.75 : 25,639.75 = 25,639.75 : x
  2. Step 2: Convert to fraction form
    11,780.75/25,639.75 = 25,639.75/x
  3. Step 3: Cross multiply
    11,780.75x = 25,639.75 × 25,639.75
  4. Step 4: Simplify right side
    11,780.75x = 657,396,780.06
  5. Step 5: Solve for x
    x = 657,396,780.06/11,780.75
  6. Step 6: Final answer
    x = 55,802.63

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.