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Finding the Fourth Proportional to 32,786.50, 45,249.21 and 18,641.47

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Solution

The fourth proportional to 32,786.50, 45,249.21 and 18,641.47 is: 25,727.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,786.50 : 45,249.21 = 18,641.47 : x
  2. Step 2: Convert to fraction form
    32,786.50/45,249.21 = 18,641.47/x
  3. Step 3: Cross multiply
    32,786.50x = 45,249.21 × 18,641.47
  4. Step 4: Simplify right side
    32,786.50x = 843,511,471.29
  5. Step 5: Solve for x
    x = 843,511,471.29/32,786.50
  6. Step 6: Final answer
    x = 25,727.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.