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Finding the Fourth Proportional to 12,996.44, 17,935.10 and 7,028.11

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Solution

The fourth proportional to 12,996.44, 17,935.10 and 7,028.11 is: 9,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,996.44 : 17,935.10 = 7,028.11 : x
  2. Step 2: Convert to fraction form
    12,996.44/17,935.10 = 7,028.11/x
  3. Step 3: Cross multiply
    12,996.44x = 17,935.10 × 7,028.11
  4. Step 4: Simplify right side
    12,996.44x = 126,049,855.66
  5. Step 5: Solve for x
    x = 126,049,855.66/12,996.44
  6. Step 6: Final answer
    x = 9,698.80

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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.