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Finding the Third Proportional to 2,152 and 4,361

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Solution

The third proportional to 2,152 and 4,361 is: 8,837.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152 : 4,361 = 4,361 : x
  2. Step 2: Convert to fraction form
    2,152/4,361 = 4,361/x
  3. Step 3: Cross multiply
    2,152x = 4,361 × 4,361
  4. Step 4: Simplify right side
    2,152x = 19,018,321
  5. Step 5: Solve for x
    x = 19,018,321/2,152
  6. Step 6: Final answer
    x = 8,837.51

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.