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Finding the Fourth Proportional to 18,661.59, 27,855.85 and 16,447.33

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Solution

The fourth proportional to 18,661.59, 27,855.85 and 16,447.33 is: 24,550.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661.59 : 27,855.85 = 16,447.33 : x
  2. Step 2: Convert to fraction form
    18,661.59/27,855.85 = 16,447.33/x
  3. Step 3: Cross multiply
    18,661.59x = 27,855.85 × 16,447.33
  4. Step 4: Simplify right side
    18,661.59x = 458,154,357.38
  5. Step 5: Solve for x
    x = 458,154,357.38/18,661.59
  6. Step 6: Final answer
    x = 24,550.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.