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Finding the Fourth Proportional to 17,511.77, 26,252.72 and 7,643.67

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Solution

The fourth proportional to 17,511.77, 26,252.72 and 7,643.67 is: 11,458.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,511.77 : 26,252.72 = 7,643.67 : x
  2. Step 2: Convert to fraction form
    17,511.77/26,252.72 = 7,643.67/x
  3. Step 3: Cross multiply
    17,511.77x = 26,252.72 × 7,643.67
  4. Step 4: Simplify right side
    17,511.77x = 200,667,128.28
  5. Step 5: Solve for x
    x = 200,667,128.28/17,511.77
  6. Step 6: Final answer
    x = 11,458.99

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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.