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Finding the Third Proportional to 15,376.50 and 20,652.75

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Solution

The third proportional to 15,376.50 and 20,652.75 is: 27,739.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376.50 : 20,652.75 = 20,652.75 : x
  2. Step 2: Convert to fraction form
    15,376.50/20,652.75 = 20,652.75/x
  3. Step 3: Cross multiply
    15,376.50x = 20,652.75 × 20,652.75
  4. Step 4: Simplify right side
    15,376.50x = 426,536,082.56
  5. Step 5: Solve for x
    x = 426,536,082.56/15,376.50
  6. Step 6: Final answer
    x = 27,739.48

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.