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Finding the Fourth Proportional to 17,261.91, 25,861.56 and 7,909.74

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Solution

The fourth proportional to 17,261.91, 25,861.56 and 7,909.74 is: 11,850.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,261.91 : 25,861.56 = 7,909.74 : x
  2. Step 2: Convert to fraction form
    17,261.91/25,861.56 = 7,909.74/x
  3. Step 3: Cross multiply
    17,261.91x = 25,861.56 × 7,909.74
  4. Step 4: Simplify right side
    17,261.91x = 204,558,215.59
  5. Step 5: Solve for x
    x = 204,558,215.59/17,261.91
  6. Step 6: Final answer
    x = 11,850.27

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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.