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Finding the Fourth Proportional to 18,538.00, 27,885.94 and 16,803.95

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Solution

The fourth proportional to 18,538.00, 27,885.94 and 16,803.95 is: 25,277.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.00 : 27,885.94 = 16,803.95 : x
  2. Step 2: Convert to fraction form
    18,538.00/27,885.94 = 16,803.95/x
  3. Step 3: Cross multiply
    18,538.00x = 27,885.94 × 16,803.95
  4. Step 4: Simplify right side
    18,538.00x = 468,593,916.88
  5. Step 5: Solve for x
    x = 468,593,916.88/18,538.00
  6. Step 6: Final answer
    x = 25,277.48

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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.