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Finding the Fourth Proportional to 18,362.68, 27,537.12 and 5,879.40

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Solution

The fourth proportional to 18,362.68, 27,537.12 and 5,879.40 is: 8,816.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362.68 : 27,537.12 = 5,879.40 : x
  2. Step 2: Convert to fraction form
    18,362.68/27,537.12 = 5,879.40/x
  3. Step 3: Cross multiply
    18,362.68x = 27,537.12 × 5,879.40
  4. Step 4: Simplify right side
    18,362.68x = 161,901,743.33
  5. Step 5: Solve for x
    x = 161,901,743.33/18,362.68
  6. Step 6: Final answer
    x = 8,816.89

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1.5x scale

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.