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Finding the Fourth Proportional to 18,794.92, 28,137.56 and 16,288.52

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Solution

The fourth proportional to 18,794.92, 28,137.56 and 16,288.52 is: 24,385.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.92 : 28,137.56 = 16,288.52 : x
  2. Step 2: Convert to fraction form
    18,794.92/28,137.56 = 16,288.52/x
  3. Step 3: Cross multiply
    18,794.92x = 28,137.56 × 16,288.52
  4. Step 4: Simplify right side
    18,794.92x = 458,319,208.81
  5. Step 5: Solve for x
    x = 458,319,208.81/18,794.92
  6. Step 6: Final answer
    x = 24,385.27

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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.