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Finding the Third Proportional to 11,643.75 and 25,211.25

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Solution

The third proportional to 11,643.75 and 25,211.25 is: 54,587.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,643.75 : 25,211.25 = 25,211.25 : x
  2. Step 2: Convert to fraction form
    11,643.75/25,211.25 = 25,211.25/x
  3. Step 3: Cross multiply
    11,643.75x = 25,211.25 × 25,211.25
  4. Step 4: Simplify right side
    11,643.75x = 635,607,126.56
  5. Step 5: Solve for x
    x = 635,607,126.56/11,643.75
  6. Step 6: Final answer
    x = 54,587.84

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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.