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Finding the Third Proportional to 4,385 and 6,623

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Solution

The third proportional to 4,385 and 6,623 is: 10,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,385 : 6,623 = 6,623 : x
  2. Step 2: Convert to fraction form
    4,385/6,623 = 6,623/x
  3. Step 3: Cross multiply
    4,385x = 6,623 × 6,623
  4. Step 4: Simplify right side
    4,385x = 43,864,129
  5. Step 5: Solve for x
    x = 43,864,129/4,385
  6. Step 6: Final answer
    x = 10,003.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.