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Finding the Fourth Proportional to 18,406.72, 27,733.03 and 16,653.97

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Solution

The fourth proportional to 18,406.72, 27,733.03 and 16,653.97 is: 25,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,406.72 : 27,733.03 = 16,653.97 : x
  2. Step 2: Convert to fraction form
    18,406.72/27,733.03 = 16,653.97/x
  3. Step 3: Cross multiply
    18,406.72x = 27,733.03 × 16,653.97
  4. Step 4: Simplify right side
    18,406.72x = 461,865,049.63
  5. Step 5: Solve for x
    x = 461,865,049.63/18,406.72
  6. Step 6: Final answer
    x = 25,092.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.