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Finding the Fourth Proportional to 18,796.99, 28,195.94 and 6,317.19

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Solution

The fourth proportional to 18,796.99, 28,195.94 and 6,317.19 is: 9,475.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.99 : 28,195.94 = 6,317.19 : x
  2. Step 2: Convert to fraction form
    18,796.99/28,195.94 = 6,317.19/x
  3. Step 3: Cross multiply
    18,796.99x = 28,195.94 × 6,317.19
  4. Step 4: Simplify right side
    18,796.99x = 178,119,110.21
  5. Step 5: Solve for x
    x = 178,119,110.21/18,796.99
  6. Step 6: Final answer
    x = 9,475.94

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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.