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Finding the Third Proportional to 13,621.50 and 20,526.75

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Solution

The third proportional to 13,621.50 and 20,526.75 is: 30,932.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.50 : 20,526.75 = 20,526.75 : x
  2. Step 2: Convert to fraction form
    13,621.50/20,526.75 = 20,526.75/x
  3. Step 3: Cross multiply
    13,621.50x = 20,526.75 × 20,526.75
  4. Step 4: Simplify right side
    13,621.50x = 421,347,465.56
  5. Step 5: Solve for x
    x = 421,347,465.56/13,621.50
  6. Step 6: Final answer
    x = 30,932.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.