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Finding the Third Proportional to 1,186 and 2,949

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Solution

The third proportional to 1,186 and 2,949 is: 7,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186 : 2,949 = 2,949 : x
  2. Step 2: Convert to fraction form
    1,186/2,949 = 2,949/x
  3. Step 3: Cross multiply
    1,186x = 2,949 × 2,949
  4. Step 4: Simplify right side
    1,186x = 8,696,601
  5. Step 5: Solve for x
    x = 8,696,601/1,186
  6. Step 6: Final answer
    x = 7,332.72

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Why These Related Problems?

These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.