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Finding the Fourth Proportional to 18,613.94, 27,891.68 and 16,266.56

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Solution

The fourth proportional to 18,613.94, 27,891.68 and 16,266.56 is: 24,374.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.94 : 27,891.68 = 16,266.56 : x
  2. Step 2: Convert to fraction form
    18,613.94/27,891.68 = 16,266.56/x
  3. Step 3: Cross multiply
    18,613.94x = 27,891.68 × 16,266.56
  4. Step 4: Simplify right side
    18,613.94x = 453,701,465.43
  5. Step 5: Solve for x
    x = 453,701,465.43/18,613.94
  6. Step 6: Final answer
    x = 24,374.29

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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.