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Finding the Fourth Proportional to 17,086.98, 25,629.21 and 8,208.66

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Solution

The fourth proportional to 17,086.98, 25,629.21 and 8,208.66 is: 12,312.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,086.98 : 25,629.21 = 8,208.66 : x
  2. Step 2: Convert to fraction form
    17,086.98/25,629.21 = 8,208.66/x
  3. Step 3: Cross multiply
    17,086.98x = 25,629.21 × 8,208.66
  4. Step 4: Simplify right side
    17,086.98x = 210,381,470.96
  5. Step 5: Solve for x
    x = 210,381,470.96/17,086.98
  6. Step 6: Final answer
    x = 12,312.38

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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.