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Finding the Third Proportional to 19,392 and 39,600.75

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Solution

The third proportional to 19,392 and 39,600.75 is: 80,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392 : 39,600.75 = 39,600.75 : x
  2. Step 2: Convert to fraction form
    19,392/39,600.75 = 39,600.75/x
  3. Step 3: Cross multiply
    19,392x = 39,600.75 × 39,600.75
  4. Step 4: Simplify right side
    19,392x = 1,568,219,400.56
  5. Step 5: Solve for x
    x = 1,568,219,400.56/19,392
  6. Step 6: Final answer
    x = 80,869.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.