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Finding the Fourth Proportional to 18,425.98, 27,666.69 and 11,063.41

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Solution

The fourth proportional to 18,425.98, 27,666.69 and 11,063.41 is: 16,611.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.98 : 27,666.69 = 11,063.41 : x
  2. Step 2: Convert to fraction form
    18,425.98/27,666.69 = 11,063.41/x
  3. Step 3: Cross multiply
    18,425.98x = 27,666.69 × 11,063.41
  4. Step 4: Simplify right side
    18,425.98x = 306,087,934.81
  5. Step 5: Solve for x
    x = 306,087,934.81/18,425.98
  6. Step 6: Final answer
    x = 16,611.76

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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.