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Finding the Fourth Proportional to 18,491.61, 27,741.99 and 7,395.33

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Solution

The fourth proportional to 18,491.61, 27,741.99 and 7,395.33 is: 11,094.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.61 : 27,741.99 = 7,395.33 : x
  2. Step 2: Convert to fraction form
    18,491.61/27,741.99 = 7,395.33/x
  3. Step 3: Cross multiply
    18,491.61x = 27,741.99 × 7,395.33
  4. Step 4: Simplify right side
    18,491.61x = 205,161,170.91
  5. Step 5: Solve for x
    x = 205,161,170.91/18,491.61
  6. Step 6: Final answer
    x = 11,094.82

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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.