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Finding the Fourth Proportional to 18,796.32, 28,197.18 and 6,313.68

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Solution

The fourth proportional to 18,796.32, 28,197.18 and 6,313.68 is: 9,471.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.32 : 28,197.18 = 6,313.68 : x
  2. Step 2: Convert to fraction form
    18,796.32/28,197.18 = 6,313.68/x
  3. Step 3: Cross multiply
    18,796.32x = 28,197.18 × 6,313.68
  4. Step 4: Simplify right side
    18,796.32x = 178,027,971.42
  5. Step 5: Solve for x
    x = 178,027,971.42/18,796.32
  6. Step 6: Final answer
    x = 9,471.43

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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.