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Finding the Third Proportional to 5,292 and 7,938

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Solution

The third proportional to 5,292 and 7,938 is: 11,907

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,292 : 7,938 = 7,938 : x
  2. Step 2: Convert to fraction form
    5,292/7,938 = 7,938/x
  3. Step 3: Cross multiply
    5,292x = 7,938 × 7,938
  4. Step 4: Simplify right side
    5,292x = 63,011,844
  5. Step 5: Solve for x
    x = 63,011,844/5,292
  6. Step 6: Final answer
    x = 11,907

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.