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Finding the Third Proportional to 5,298 and 6,899

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Solution

The third proportional to 5,298 and 6,899 is: 8,983.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298 : 6,899 = 6,899 : x
  2. Step 2: Convert to fraction form
    5,298/6,899 = 6,899/x
  3. Step 3: Cross multiply
    5,298x = 6,899 × 6,899
  4. Step 4: Simplify right side
    5,298x = 47,596,201
  5. Step 5: Solve for x
    x = 47,596,201/5,298
  6. Step 6: Final answer
    x = 8,983.81

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.