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Finding the Fourth Proportional to 18,633.22, 27,951.65 and 6,943.70

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Solution

The fourth proportional to 18,633.22, 27,951.65 and 6,943.70 is: 10,416.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.22 : 27,951.65 = 6,943.70 : x
  2. Step 2: Convert to fraction form
    18,633.22/27,951.65 = 6,943.70/x
  3. Step 3: Cross multiply
    18,633.22x = 27,951.65 × 6,943.70
  4. Step 4: Simplify right side
    18,633.22x = 194,087,872.11
  5. Step 5: Solve for x
    x = 194,087,872.11/18,633.22
  6. Step 6: Final answer
    x = 10,416.23

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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.