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Finding the Third Proportional to 6,601 and 15,581

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Solution

The third proportional to 6,601 and 15,581 is: 36,777.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601 : 15,581 = 15,581 : x
  2. Step 2: Convert to fraction form
    6,601/15,581 = 15,581/x
  3. Step 3: Cross multiply
    6,601x = 15,581 × 15,581
  4. Step 4: Simplify right side
    6,601x = 242,767,561
  5. Step 5: Solve for x
    x = 242,767,561/6,601
  6. Step 6: Final answer
    x = 36,777.39

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.