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Finding the Third Proportional to 8,690.50 and 13,992

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Solution

The third proportional to 8,690.50 and 13,992 is: 22,527.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.50 : 13,992 = 13,992 : x
  2. Step 2: Convert to fraction form
    8,690.50/13,992 = 13,992/x
  3. Step 3: Cross multiply
    8,690.50x = 13,992 × 13,992
  4. Step 4: Simplify right side
    8,690.50x = 195,776,064
  5. Step 5: Solve for x
    x = 195,776,064/8,690.50
  6. Step 6: Final answer
    x = 22,527.59

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.