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Finding the Fourth Proportional to 18,548.16, 27,821.92 and 6,236.16

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Solution

The fourth proportional to 18,548.16, 27,821.92 and 6,236.16 is: 9,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,548.16 : 27,821.92 = 6,236.16 : x
  2. Step 2: Convert to fraction form
    18,548.16/27,821.92 = 6,236.16/x
  3. Step 3: Cross multiply
    18,548.16x = 27,821.92 × 6,236.16
  4. Step 4: Simplify right side
    18,548.16x = 173,501,944.63
  5. Step 5: Solve for x
    x = 173,501,944.63/18,548.16
  6. Step 6: Final answer
    x = 9,354.13

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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.