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Finding the Fourth Proportional to 16,798.86, 25,179.84 and 6,932.79

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Solution

The fourth proportional to 16,798.86, 25,179.84 and 6,932.79 is: 10,391.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,798.86 : 25,179.84 = 6,932.79 : x
  2. Step 2: Convert to fraction form
    16,798.86/25,179.84 = 6,932.79/x
  3. Step 3: Cross multiply
    16,798.86x = 25,179.84 × 6,932.79
  4. Step 4: Simplify right side
    16,798.86x = 174,566,542.95
  5. Step 5: Solve for x
    x = 174,566,542.95/16,798.86
  6. Step 6: Final answer
    x = 10,391.57

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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.