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Finding the Fourth Proportional to 45,380.70, 68,072.97 and 14,216.22

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Solution

The fourth proportional to 45,380.70, 68,072.97 and 14,216.22 is: 21,324.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,380.70 : 68,072.97 = 14,216.22 : x
  2. Step 2: Convert to fraction form
    45,380.70/68,072.97 = 14,216.22/x
  3. Step 3: Cross multiply
    45,380.70x = 68,072.97 × 14,216.22
  4. Step 4: Simplify right side
    45,380.70x = 967,740,317.57
  5. Step 5: Solve for x
    x = 967,740,317.57/45,380.70
  6. Step 6: Final answer
    x = 21,324.93

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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.