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Finding the Third Proportional to 3,505 and 7,646

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Solution

The third proportional to 3,505 and 7,646 is: 16,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505 : 7,646 = 7,646 : x
  2. Step 2: Convert to fraction form
    3,505/7,646 = 7,646/x
  3. Step 3: Cross multiply
    3,505x = 7,646 × 7,646
  4. Step 4: Simplify right side
    3,505x = 58,461,316
  5. Step 5: Solve for x
    x = 58,461,316/3,505
  6. Step 6: Final answer
    x = 16,679.41

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.