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Finding the Fourth Proportional to 16,613.44, 22,926.54 and 9,161.44

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Solution

The fourth proportional to 16,613.44, 22,926.54 and 9,161.44 is: 12,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,613.44 : 22,926.54 = 9,161.44 : x
  2. Step 2: Convert to fraction form
    16,613.44/22,926.54 = 9,161.44/x
  3. Step 3: Cross multiply
    16,613.44x = 22,926.54 × 9,161.44
  4. Step 4: Simplify right side
    16,613.44x = 210,040,097.66
  5. Step 5: Solve for x
    x = 210,040,097.66/16,613.44
  6. Step 6: Final answer
    x = 12,642.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.