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Finding the Third Proportional to 5,328 and 7,848

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Solution

The third proportional to 5,328 and 7,848 is: 11,559.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328 : 7,848 = 7,848 : x
  2. Step 2: Convert to fraction form
    5,328/7,848 = 7,848/x
  3. Step 3: Cross multiply
    5,328x = 7,848 × 7,848
  4. Step 4: Simplify right side
    5,328x = 61,591,104
  5. Step 5: Solve for x
    x = 61,591,104/5,328
  6. Step 6: Final answer
    x = 11,559.89

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.