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Finding the Fourth Proportional to 13,749.28, 18,974.01 and 7,461.65

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Solution

The fourth proportional to 13,749.28, 18,974.01 and 7,461.65 is: 10,297.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.28 : 18,974.01 = 7,461.65 : x
  2. Step 2: Convert to fraction form
    13,749.28/18,974.01 = 7,461.65/x
  3. Step 3: Cross multiply
    13,749.28x = 18,974.01 × 7,461.65
  4. Step 4: Simplify right side
    13,749.28x = 141,577,497.13
  5. Step 5: Solve for x
    x = 141,577,497.13/13,749.28
  6. Step 6: Final answer
    x = 10,297.09

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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.