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Finding the Third Proportional to 4,213 and 7,898

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Solution

The third proportional to 4,213 and 7,898 is: 14,806.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213 : 7,898 = 7,898 : x
  2. Step 2: Convert to fraction form
    4,213/7,898 = 7,898/x
  3. Step 3: Cross multiply
    4,213x = 7,898 × 7,898
  4. Step 4: Simplify right side
    4,213x = 62,378,404
  5. Step 5: Solve for x
    x = 62,378,404/4,213
  6. Step 6: Final answer
    x = 14,806.17

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.