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Finding the Third Proportional to 2,388.75 and 5,247.75

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Solution

The third proportional to 2,388.75 and 5,247.75 is: 11,528.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.75 : 5,247.75 = 5,247.75 : x
  2. Step 2: Convert to fraction form
    2,388.75/5,247.75 = 5,247.75/x
  3. Step 3: Cross multiply
    2,388.75x = 5,247.75 × 5,247.75
  4. Step 4: Simplify right side
    2,388.75x = 27,538,880.06
  5. Step 5: Solve for x
    x = 27,538,880.06/2,388.75
  6. Step 6: Final answer
    x = 11,528.57

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.