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Finding the Fourth Proportional to 56,452.41, 84,660.86 and 20,424.22

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Solution

The fourth proportional to 56,452.41, 84,660.86 and 20,424.22 is: 30,629.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,452.41 : 84,660.86 = 20,424.22 : x
  2. Step 2: Convert to fraction form
    56,452.41/84,660.86 = 20,424.22/x
  3. Step 3: Cross multiply
    56,452.41x = 84,660.86 × 20,424.22
  4. Step 4: Simplify right side
    56,452.41x = 1,729,131,869.44
  5. Step 5: Solve for x
    x = 1,729,131,869.44/56,452.41
  6. Step 6: Final answer
    x = 30,629.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.