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Finding the Third Proportional to 2,358 and 4,979

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Solution

The third proportional to 2,358 and 4,979 is: 10,513.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,358 : 4,979 = 4,979 : x
  2. Step 2: Convert to fraction form
    2,358/4,979 = 4,979/x
  3. Step 3: Cross multiply
    2,358x = 4,979 × 4,979
  4. Step 4: Simplify right side
    2,358x = 24,790,441
  5. Step 5: Solve for x
    x = 24,790,441/2,358
  6. Step 6: Final answer
    x = 10,513.33

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.