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Finding the Fourth Proportional to 18,796.92, 28,177.08 and 10,469.28

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Solution

The fourth proportional to 18,796.92, 28,177.08 and 10,469.28 is: 15,693.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.92 : 28,177.08 = 10,469.28 : x
  2. Step 2: Convert to fraction form
    18,796.92/28,177.08 = 10,469.28/x
  3. Step 3: Cross multiply
    18,796.92x = 28,177.08 × 10,469.28
  4. Step 4: Simplify right side
    18,796.92x = 294,993,740.10
  5. Step 5: Solve for x
    x = 294,993,740.10/18,796.92
  6. Step 6: Final answer
    x = 15,693.73

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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.