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Finding the Fourth Proportional to 29,809.91, 44,716.22 and 21,083.78

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Solution

The fourth proportional to 29,809.91, 44,716.22 and 21,083.78 is: 31,626.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,809.91 : 44,716.22 = 21,083.78 : x
  2. Step 2: Convert to fraction form
    29,809.91/44,716.22 = 21,083.78/x
  3. Step 3: Cross multiply
    29,809.91x = 44,716.22 × 21,083.78
  4. Step 4: Simplify right side
    29,809.91x = 942,786,615.91
  5. Step 5: Solve for x
    x = 942,786,615.91/29,809.91
  6. Step 6: Final answer
    x = 31,626.62

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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.