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Finding the Fourth Proportional to 18,745.92, 25,731.67 and 16,573.87

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Solution

The fourth proportional to 18,745.92, 25,731.67 and 16,573.87 is: 22,750.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.92 : 25,731.67 = 16,573.87 : x
  2. Step 2: Convert to fraction form
    18,745.92/25,731.67 = 16,573.87/x
  3. Step 3: Cross multiply
    18,745.92x = 25,731.67 × 16,573.87
  4. Step 4: Simplify right side
    18,745.92x = 426,473,270.59
  5. Step 5: Solve for x
    x = 426,473,270.59/18,745.92
  6. Step 6: Final answer
    x = 22,750.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.