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Finding the Fourth Proportional to 18,491.04, 27,737.98 and 5,343.53

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Solution

The fourth proportional to 18,491.04, 27,737.98 and 5,343.53 is: 8,015.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.04 : 27,737.98 = 5,343.53 : x
  2. Step 2: Convert to fraction form
    18,491.04/27,737.98 = 5,343.53/x
  3. Step 3: Cross multiply
    18,491.04x = 27,737.98 × 5,343.53
  4. Step 4: Simplify right side
    18,491.04x = 148,218,576.22
  5. Step 5: Solve for x
    x = 148,218,576.22/18,491.04
  6. Step 6: Final answer
    x = 8,015.70

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Why These Related Problems?

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