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Finding the Fourth Proportional to 18,173.49, 27,243.81 and 6,483.99

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Solution

The fourth proportional to 18,173.49, 27,243.81 and 6,483.99 is: 9,720.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,173.49 : 27,243.81 = 6,483.99 : x
  2. Step 2: Convert to fraction form
    18,173.49/27,243.81 = 6,483.99/x
  3. Step 3: Cross multiply
    18,173.49x = 27,243.81 × 6,483.99
  4. Step 4: Simplify right side
    18,173.49x = 176,648,591.60
  5. Step 5: Solve for x
    x = 176,648,591.60/18,173.49
  6. Step 6: Final answer
    x = 9,720.12

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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.