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Finding the Fourth Proportional to 16,631.28, 22,954.02 and 15,883.92

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Solution

The fourth proportional to 16,631.28, 22,954.02 and 15,883.92 is: 21,922.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,631.28 : 22,954.02 = 15,883.92 : x
  2. Step 2: Convert to fraction form
    16,631.28/22,954.02 = 15,883.92/x
  3. Step 3: Cross multiply
    16,631.28x = 22,954.02 × 15,883.92
  4. Step 4: Simplify right side
    16,631.28x = 364,599,817.36
  5. Step 5: Solve for x
    x = 364,599,817.36/16,631.28
  6. Step 6: Final answer
    x = 21,922.53

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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.