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Finding the Fourth Proportional to 19,945.64, 27,525.16 and 10,993.46

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Solution

The fourth proportional to 19,945.64, 27,525.16 and 10,993.46 is: 15,171.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,945.64 : 27,525.16 = 10,993.46 : x
  2. Step 2: Convert to fraction form
    19,945.64/27,525.16 = 10,993.46/x
  3. Step 3: Cross multiply
    19,945.64x = 27,525.16 × 10,993.46
  4. Step 4: Simplify right side
    19,945.64x = 302,596,745.45
  5. Step 5: Solve for x
    x = 302,596,745.45/19,945.64
  6. Step 6: Final answer
    x = 15,171.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.