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Finding the Fourth Proportional to 18,534.54, 27,795.06 and 5,383.38

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Solution

The fourth proportional to 18,534.54, 27,795.06 and 5,383.38 is: 8,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,534.54 : 27,795.06 = 5,383.38 : x
  2. Step 2: Convert to fraction form
    18,534.54/27,795.06 = 5,383.38/x
  3. Step 3: Cross multiply
    18,534.54x = 27,795.06 × 5,383.38
  4. Step 4: Simplify right side
    18,534.54x = 149,631,370.10
  5. Step 5: Solve for x
    x = 149,631,370.10/18,534.54
  6. Step 6: Final answer
    x = 8,073.11

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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.