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Finding the Fourth Proportional to 18,248.54, 27,361.75 and 8,879.12

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Solution

The fourth proportional to 18,248.54, 27,361.75 and 8,879.12 is: 13,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,248.54 : 27,361.75 = 8,879.12 : x
  2. Step 2: Convert to fraction form
    18,248.54/27,361.75 = 8,879.12/x
  3. Step 3: Cross multiply
    18,248.54x = 27,361.75 × 8,879.12
  4. Step 4: Simplify right side
    18,248.54x = 242,948,221.91
  5. Step 5: Solve for x
    x = 242,948,221.91/18,248.54
  6. Step 6: Final answer
    x = 13,313.30

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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.