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Finding the Fourth Proportional to 13,652.06, 18,839.50 and 8,936.24

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Solution

The fourth proportional to 13,652.06, 18,839.50 and 8,936.24 is: 12,331.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,652.06 : 18,839.50 = 8,936.24 : x
  2. Step 2: Convert to fraction form
    13,652.06/18,839.50 = 8,936.24/x
  3. Step 3: Cross multiply
    13,652.06x = 18,839.50 × 8,936.24
  4. Step 4: Simplify right side
    13,652.06x = 168,354,293.48
  5. Step 5: Solve for x
    x = 168,354,293.48/13,652.06
  6. Step 6: Final answer
    x = 12,331.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.