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Finding the Third Proportional to 2,696 and 4,987

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Solution

The third proportional to 2,696 and 4,987 is: 9,224.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696 : 4,987 = 4,987 : x
  2. Step 2: Convert to fraction form
    2,696/4,987 = 4,987/x
  3. Step 3: Cross multiply
    2,696x = 4,987 × 4,987
  4. Step 4: Simplify right side
    2,696x = 24,870,169
  5. Step 5: Solve for x
    x = 24,870,169/2,696
  6. Step 6: Final answer
    x = 9,224.84

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.