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Finding the Fourth Proportional to 16,791.99, 25,171.57 and 6,938.16

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Solution

The fourth proportional to 16,791.99, 25,171.57 and 6,938.16 is: 10,400.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,791.99 : 25,171.57 = 6,938.16 : x
  2. Step 2: Convert to fraction form
    16,791.99/25,171.57 = 6,938.16/x
  3. Step 3: Cross multiply
    16,791.99x = 25,171.57 × 6,938.16
  4. Step 4: Simplify right side
    16,791.99x = 174,644,380.11
  5. Step 5: Solve for x
    x = 174,644,380.11/16,791.99
  6. Step 6: Final answer
    x = 10,400.46

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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.