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Finding the Third Proportional to 4,938.75 and 7,896.38

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Solution

The third proportional to 4,938.75 and 7,896.38 is: 12,625.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.75 : 7,896.38 = 7,896.38 : x
  2. Step 2: Convert to fraction form
    4,938.75/7,896.38 = 7,896.38/x
  3. Step 3: Cross multiply
    4,938.75x = 7,896.38 × 7,896.38
  4. Step 4: Simplify right side
    4,938.75x = 62,352,738.14
  5. Step 5: Solve for x
    x = 62,352,738.14/4,938.75
  6. Step 6: Final answer
    x = 12,625.21

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.