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Finding the Fourth Proportional to 18,373.42, 27,576.13 and 10,491.72

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Solution

The fourth proportional to 18,373.42, 27,576.13 and 10,491.72 is: 15,746.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,373.42 : 27,576.13 = 10,491.72 : x
  2. Step 2: Convert to fraction form
    18,373.42/27,576.13 = 10,491.72/x
  3. Step 3: Cross multiply
    18,373.42x = 27,576.13 × 10,491.72
  4. Step 4: Simplify right side
    18,373.42x = 289,321,034.64
  5. Step 5: Solve for x
    x = 289,321,034.64/18,373.42
  6. Step 6: Final answer
    x = 15,746.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.