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Finding the Third Proportional to 3,561 and 4,788

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Solution

The third proportional to 3,561 and 4,788 is: 6,437.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561 : 4,788 = 4,788 : x
  2. Step 2: Convert to fraction form
    3,561/4,788 = 4,788/x
  3. Step 3: Cross multiply
    3,561x = 4,788 × 4,788
  4. Step 4: Simplify right side
    3,561x = 22,924,944
  5. Step 5: Solve for x
    x = 22,924,944/3,561
  6. Step 6: Final answer
    x = 6,437.78

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.