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Finding the Fourth Proportional to 17,996.80, 26,962.80 and 16,912.48

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Solution

The fourth proportional to 17,996.80, 26,962.80 and 16,912.48 is: 25,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,996.80 : 26,962.80 = 16,912.48 : x
  2. Step 2: Convert to fraction form
    17,996.80/26,962.80 = 16,912.48/x
  3. Step 3: Cross multiply
    17,996.80x = 26,962.80 × 16,912.48
  4. Step 4: Simplify right side
    17,996.80x = 456,007,815.74
  5. Step 5: Solve for x
    x = 456,007,815.74/17,996.80
  6. Step 6: Final answer
    x = 25,338.27

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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.