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Finding the Third Proportional to 3,807 and 8,261

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Solution

The third proportional to 3,807 and 8,261 is: 17,925.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807 : 8,261 = 8,261 : x
  2. Step 2: Convert to fraction form
    3,807/8,261 = 8,261/x
  3. Step 3: Cross multiply
    3,807x = 8,261 × 8,261
  4. Step 4: Simplify right side
    3,807x = 68,244,121
  5. Step 5: Solve for x
    x = 68,244,121/3,807
  6. Step 6: Final answer
    x = 17,925.96

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.