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Finding the Fourth Proportional to 33,989.70, 46,912.46 and 21,717.22

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Solution

The fourth proportional to 33,989.70, 46,912.46 and 21,717.22 is: 29,974.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,989.70 : 46,912.46 = 21,717.22 : x
  2. Step 2: Convert to fraction form
    33,989.70/46,912.46 = 21,717.22/x
  3. Step 3: Cross multiply
    33,989.70x = 46,912.46 × 21,717.22
  4. Step 4: Simplify right side
    33,989.70x = 1,018,807,871.41
  5. Step 5: Solve for x
    x = 1,018,807,871.41/33,989.70
  6. Step 6: Final answer
    x = 29,974.02

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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.