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Finding the Fourth Proportional to 17,163.99, 25,700.85 and 13,814.40

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Solution

The fourth proportional to 17,163.99, 25,700.85 and 13,814.40 is: 20,685.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,163.99 : 25,700.85 = 13,814.40 : x
  2. Step 2: Convert to fraction form
    17,163.99/25,700.85 = 13,814.40/x
  3. Step 3: Cross multiply
    17,163.99x = 25,700.85 × 13,814.40
  4. Step 4: Simplify right side
    17,163.99x = 355,041,822.24
  5. Step 5: Solve for x
    x = 355,041,822.24/17,163.99
  6. Step 6: Final answer
    x = 20,685.27

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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.