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Finding the Fourth Proportional to 17,591.32, 26,392.50 and 7,738.88

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Solution

The fourth proportional to 17,591.32, 26,392.50 and 7,738.88 is: 11,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,591.32 : 26,392.50 = 7,738.88 : x
  2. Step 2: Convert to fraction form
    17,591.32/26,392.50 = 7,738.88/x
  3. Step 3: Cross multiply
    17,591.32x = 26,392.50 × 7,738.88
  4. Step 4: Simplify right side
    17,591.32x = 204,248,390.40
  5. Step 5: Solve for x
    x = 204,248,390.40/17,591.32
  6. Step 6: Final answer
    x = 11,610.75

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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.