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Finding the Fourth Proportional to 19,628.98, 27,090.11 and 17,183.99

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Solution

The fourth proportional to 19,628.98, 27,090.11 and 17,183.99 is: 23,715.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.98 : 27,090.11 = 17,183.99 : x
  2. Step 2: Convert to fraction form
    19,628.98/27,090.11 = 17,183.99/x
  3. Step 3: Cross multiply
    19,628.98x = 27,090.11 × 17,183.99
  4. Step 4: Simplify right side
    19,628.98x = 465,516,179.34
  5. Step 5: Solve for x
    x = 465,516,179.34/19,628.98
  6. Step 6: Final answer
    x = 23,715.76

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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.