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Finding the Fourth Proportional to 17,184.42, 25,770.86 and 7,690.79

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Solution

The fourth proportional to 17,184.42, 25,770.86 and 7,690.79 is: 11,533.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,184.42 : 25,770.86 = 7,690.79 : x
  2. Step 2: Convert to fraction form
    17,184.42/25,770.86 = 7,690.79/x
  3. Step 3: Cross multiply
    17,184.42x = 25,770.86 × 7,690.79
  4. Step 4: Simplify right side
    17,184.42x = 198,198,327.19
  5. Step 5: Solve for x
    x = 198,198,327.19/17,184.42
  6. Step 6: Final answer
    x = 11,533.61

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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.