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Finding the Fourth Proportional to 17,591.40, 26,350.30 and 8,239.40

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Solution

The fourth proportional to 17,591.40, 26,350.30 and 8,239.40 is: 12,341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,591.40 : 26,350.30 = 8,239.40 : x
  2. Step 2: Convert to fraction form
    17,591.40/26,350.30 = 8,239.40/x
  3. Step 3: Cross multiply
    17,591.40x = 26,350.30 × 8,239.40
  4. Step 4: Simplify right side
    17,591.40x = 217,110,661.82
  5. Step 5: Solve for x
    x = 217,110,661.82/17,591.40
  6. Step 6: Final answer
    x = 12,341.86

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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.