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Finding the Third Proportional to 5,115.75 and 11,208

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Solution

The third proportional to 5,115.75 and 11,208 is: 24,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.75 : 11,208 = 11,208 : x
  2. Step 2: Convert to fraction form
    5,115.75/11,208 = 11,208/x
  3. Step 3: Cross multiply
    5,115.75x = 11,208 × 11,208
  4. Step 4: Simplify right side
    5,115.75x = 125,619,264
  5. Step 5: Solve for x
    x = 125,619,264/5,115.75
  6. Step 6: Final answer
    x = 24,555.40

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.