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Finding the Third Proportional to 1,417 and 2,979

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Solution

The third proportional to 1,417 and 2,979 is: 6,262.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417 : 2,979 = 2,979 : x
  2. Step 2: Convert to fraction form
    1,417/2,979 = 2,979/x
  3. Step 3: Cross multiply
    1,417x = 2,979 × 2,979
  4. Step 4: Simplify right side
    1,417x = 8,874,441
  5. Step 5: Solve for x
    x = 8,874,441/1,417
  6. Step 6: Final answer
    x = 6,262.84

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.