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Finding the Fourth Proportional to 18,393.05, 27,567.98 and 8,511.46

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Solution

The fourth proportional to 18,393.05, 27,567.98 and 8,511.46 is: 12,757.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393.05 : 27,567.98 = 8,511.46 : x
  2. Step 2: Convert to fraction form
    18,393.05/27,567.98 = 8,511.46/x
  3. Step 3: Cross multiply
    18,393.05x = 27,567.98 × 8,511.46
  4. Step 4: Simplify right side
    18,393.05x = 234,643,578.65
  5. Step 5: Solve for x
    x = 234,643,578.65/18,393.05
  6. Step 6: Final answer
    x = 12,757.19

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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.