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Finding the Fourth Proportional to 18,465.98, 27,704.79 and 14,044.82

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Solution

The fourth proportional to 18,465.98, 27,704.79 and 14,044.82 is: 21,071.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.98 : 27,704.79 = 14,044.82 : x
  2. Step 2: Convert to fraction form
    18,465.98/27,704.79 = 14,044.82/x
  3. Step 3: Cross multiply
    18,465.98x = 27,704.79 × 14,044.82
  4. Step 4: Simplify right side
    18,465.98x = 389,108,823.80
  5. Step 5: Solve for x
    x = 389,108,823.80/18,465.98
  6. Step 6: Final answer
    x = 21,071.66

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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.