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Finding the Fourth Proportional to 18,465.48, 27,735.48 and 11,083.95

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Solution

The fourth proportional to 18,465.48, 27,735.48 and 11,083.95 is: 16,648.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.48 : 27,735.48 = 11,083.95 : x
  2. Step 2: Convert to fraction form
    18,465.48/27,735.48 = 11,083.95/x
  3. Step 3: Cross multiply
    18,465.48x = 27,735.48 × 11,083.95
  4. Step 4: Simplify right side
    18,465.48x = 307,418,673.55
  5. Step 5: Solve for x
    x = 307,418,673.55/18,465.48
  6. Step 6: Final answer
    x = 16,648.29

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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.