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Finding the Fourth Proportional to 27,628.96, 41,414.08 and 18,842.08

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Solution

The fourth proportional to 27,628.96, 41,414.08 and 18,842.08 is: 28,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,628.96 : 41,414.08 = 18,842.08 : x
  2. Step 2: Convert to fraction form
    27,628.96/41,414.08 = 18,842.08/x
  3. Step 3: Cross multiply
    27,628.96x = 41,414.08 × 18,842.08
  4. Step 4: Simplify right side
    27,628.96x = 780,327,408.49
  5. Step 5: Solve for x
    x = 780,327,408.49/27,628.96
  6. Step 6: Final answer
    x = 28,243.10

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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.