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Finding the Third Proportional to 5,116.50 and 8,208

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Solution

The third proportional to 5,116.50 and 8,208 is: 13,167.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.50 : 8,208 = 8,208 : x
  2. Step 2: Convert to fraction form
    5,116.50/8,208 = 8,208/x
  3. Step 3: Cross multiply
    5,116.50x = 8,208 × 8,208
  4. Step 4: Simplify right side
    5,116.50x = 67,371,264
  5. Step 5: Solve for x
    x = 67,371,264/5,116.50
  6. Step 6: Final answer
    x = 13,167.45

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.