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Finding the Fourth Proportional to 16,922.80, 25,384.20 and 16,631.20

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Solution

The fourth proportional to 16,922.80, 25,384.20 and 16,631.20 is: 24,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,922.80 : 25,384.20 = 16,631.20 : x
  2. Step 2: Convert to fraction form
    16,922.80/25,384.20 = 16,631.20/x
  3. Step 3: Cross multiply
    16,922.80x = 25,384.20 × 16,631.20
  4. Step 4: Simplify right side
    16,922.80x = 422,169,707.04
  5. Step 5: Solve for x
    x = 422,169,707.04/16,922.80
  6. Step 6: Final answer
    x = 24,946.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.