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Finding the Fourth Proportional to 10,798.80, 16,198.17 and 3,403.90

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Solution

The fourth proportional to 10,798.80, 16,198.17 and 3,403.90 is: 5,105.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,798.80 : 16,198.17 = 3,403.90 : x
  2. Step 2: Convert to fraction form
    10,798.80/16,198.17 = 3,403.90/x
  3. Step 3: Cross multiply
    10,798.80x = 16,198.17 × 3,403.90
  4. Step 4: Simplify right side
    10,798.80x = 55,136,950.86
  5. Step 5: Solve for x
    x = 55,136,950.86/10,798.80
  6. Step 6: Final answer
    x = 5,105.84

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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.