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Finding the Third Proportional to 4,938 and 7,883

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Solution

The third proportional to 4,938 and 7,883 is: 12,584.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938 : 7,883 = 7,883 : x
  2. Step 2: Convert to fraction form
    4,938/7,883 = 7,883/x
  3. Step 3: Cross multiply
    4,938x = 7,883 × 7,883
  4. Step 4: Simplify right side
    4,938x = 62,141,689
  5. Step 5: Solve for x
    x = 62,141,689/4,938
  6. Step 6: Final answer
    x = 12,584.38

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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.