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Finding the Fourth Proportional to 18,735.54, 28,102.77 and 4,884.54

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Solution

The fourth proportional to 18,735.54, 28,102.77 and 4,884.54 is: 7,326.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.54 : 28,102.77 = 4,884.54 : x
  2. Step 2: Convert to fraction form
    18,735.54/28,102.77 = 4,884.54/x
  3. Step 3: Cross multiply
    18,735.54x = 28,102.77 × 4,884.54
  4. Step 4: Simplify right side
    18,735.54x = 137,269,104.18
  5. Step 5: Solve for x
    x = 137,269,104.18/18,735.54
  6. Step 6: Final answer
    x = 7,326.67

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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.