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Finding the Fourth Proportional to 11,468.50, 17,205.64 and 3,260.50

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Solution

The fourth proportional to 11,468.50, 17,205.64 and 3,260.50 is: 4,891.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,468.50 : 17,205.64 = 3,260.50 : x
  2. Step 2: Convert to fraction form
    11,468.50/17,205.64 = 3,260.50/x
  3. Step 3: Cross multiply
    11,468.50x = 17,205.64 × 3,260.50
  4. Step 4: Simplify right side
    11,468.50x = 56,098,989.22
  5. Step 5: Solve for x
    x = 56,098,989.22/11,468.50
  6. Step 6: Final answer
    x = 4,891.57

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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.