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Finding the Third Proportional to 4,837.50 and 9,918

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Solution

The third proportional to 4,837.50 and 9,918 is: 20,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,837.50 : 9,918 = 9,918 : x
  2. Step 2: Convert to fraction form
    4,837.50/9,918 = 9,918/x
  3. Step 3: Cross multiply
    4,837.50x = 9,918 × 9,918
  4. Step 4: Simplify right side
    4,837.50x = 98,366,724
  5. Step 5: Solve for x
    x = 98,366,724/4,837.50
  6. Step 6: Final answer
    x = 20,334.21

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.