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Finding the Fourth Proportional to 18,796.99, 28,196.16 and 6,317.43

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Solution

The fourth proportional to 18,796.99, 28,196.16 and 6,317.43 is: 9,476.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.99 : 28,196.16 = 6,317.43 : x
  2. Step 2: Convert to fraction form
    18,796.99/28,196.16 = 6,317.43/x
  3. Step 3: Cross multiply
    18,796.99x = 28,196.16 × 6,317.43
  4. Step 4: Simplify right side
    18,796.99x = 178,127,126.09
  5. Step 5: Solve for x
    x = 178,127,126.09/18,796.99
  6. Step 6: Final answer
    x = 9,476.37

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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.