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Finding the Third Proportional to 18,819 and 41,136.75

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Solution

The third proportional to 18,819 and 41,136.75 is: 89,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819 : 41,136.75 = 41,136.75 : x
  2. Step 2: Convert to fraction form
    18,819/41,136.75 = 41,136.75/x
  3. Step 3: Cross multiply
    18,819x = 41,136.75 × 41,136.75
  4. Step 4: Simplify right side
    18,819x = 1,692,232,200.56
  5. Step 5: Solve for x
    x = 1,692,232,200.56/18,819
  6. Step 6: Final answer
    x = 89,921.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.