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Finding the Fourth Proportional to 36,679.49, 50,617.91 and 21,572.79

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Solution

The fourth proportional to 36,679.49, 50,617.91 and 21,572.79 is: 29,770.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,679.49 : 50,617.91 = 21,572.79 : x
  2. Step 2: Convert to fraction form
    36,679.49/50,617.91 = 21,572.79/x
  3. Step 3: Cross multiply
    36,679.49x = 50,617.91 × 21,572.79
  4. Step 4: Simplify right side
    36,679.49x = 1,091,969,285.44
  5. Step 5: Solve for x
    x = 1,091,969,285.44/36,679.49
  6. Step 6: Final answer
    x = 29,770.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.