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Finding the Third Proportional to 4,998 and 8,208

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Solution

The third proportional to 4,998 and 8,208 is: 13,479.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998 : 8,208 = 8,208 : x
  2. Step 2: Convert to fraction form
    4,998/8,208 = 8,208/x
  3. Step 3: Cross multiply
    4,998x = 8,208 × 8,208
  4. Step 4: Simplify right side
    4,998x = 67,371,264
  5. Step 5: Solve for x
    x = 67,371,264/4,998
  6. Step 6: Final answer
    x = 13,479.64

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.