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Finding the Fourth Proportional to 18,893.73, 28,200.48 and 16,679.37

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Solution

The fourth proportional to 18,893.73, 28,200.48 and 16,679.37 is: 24,895.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,893.73 : 28,200.48 = 16,679.37 : x
  2. Step 2: Convert to fraction form
    18,893.73/28,200.48 = 16,679.37/x
  3. Step 3: Cross multiply
    18,893.73x = 28,200.48 × 16,679.37
  4. Step 4: Simplify right side
    18,893.73x = 470,366,240.10
  5. Step 5: Solve for x
    x = 470,366,240.10/18,893.73
  6. Step 6: Final answer
    x = 24,895.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.