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Finding the Third Proportional to 3,618 and 5,601

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Solution

The third proportional to 3,618 and 5,601 is: 8,670.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618 : 5,601 = 5,601 : x
  2. Step 2: Convert to fraction form
    3,618/5,601 = 5,601/x
  3. Step 3: Cross multiply
    3,618x = 5,601 × 5,601
  4. Step 4: Simplify right side
    3,618x = 31,371,201
  5. Step 5: Solve for x
    x = 31,371,201/3,618
  6. Step 6: Final answer
    x = 8,670.87

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.