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Finding the Third Proportional to 5,188 and 7,935

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Solution

The third proportional to 5,188 and 7,935 is: 12,136.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188 : 7,935 = 7,935 : x
  2. Step 2: Convert to fraction form
    5,188/7,935 = 7,935/x
  3. Step 3: Cross multiply
    5,188x = 7,935 × 7,935
  4. Step 4: Simplify right side
    5,188x = 62,964,225
  5. Step 5: Solve for x
    x = 62,964,225/5,188
  6. Step 6: Final answer
    x = 12,136.51

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.