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Finding the Fourth Proportional to 9,799.68, 14,684.94 and 5,418.39

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Solution

The fourth proportional to 9,799.68, 14,684.94 and 5,418.39 is: 8,119.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,799.68 : 14,684.94 = 5,418.39 : x
  2. Step 2: Convert to fraction form
    9,799.68/14,684.94 = 5,418.39/x
  3. Step 3: Cross multiply
    9,799.68x = 14,684.94 × 5,418.39
  4. Step 4: Simplify right side
    9,799.68x = 79,568,732.05
  5. Step 5: Solve for x
    x = 79,568,732.05/9,799.68
  6. Step 6: Final answer
    x = 8,119.52

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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.