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Finding the Third Proportional to 6,811.50 and 12,651

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Solution

The third proportional to 6,811.50 and 12,651 is: 23,496.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.50 : 12,651 = 12,651 : x
  2. Step 2: Convert to fraction form
    6,811.50/12,651 = 12,651/x
  3. Step 3: Cross multiply
    6,811.50x = 12,651 × 12,651
  4. Step 4: Simplify right side
    6,811.50x = 160,047,801
  5. Step 5: Solve for x
    x = 160,047,801/6,811.50
  6. Step 6: Final answer
    x = 23,496.70

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.