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Finding the Third Proportional to 5,620 and 6,223

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Solution

The third proportional to 5,620 and 6,223 is: 6,890.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620 : 6,223 = 6,223 : x
  2. Step 2: Convert to fraction form
    5,620/6,223 = 6,223/x
  3. Step 3: Cross multiply
    5,620x = 6,223 × 6,223
  4. Step 4: Simplify right side
    5,620x = 38,725,729
  5. Step 5: Solve for x
    x = 38,725,729/5,620
  6. Step 6: Final answer
    x = 6,890.70

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.