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Finding the Fourth Proportional to 18,597.44, 27,896.80 and 8,736.64

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Solution

The fourth proportional to 18,597.44, 27,896.80 and 8,736.64 is: 13,105.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,597.44 : 27,896.80 = 8,736.64 : x
  2. Step 2: Convert to fraction form
    18,597.44/27,896.80 = 8,736.64/x
  3. Step 3: Cross multiply
    18,597.44x = 27,896.80 × 8,736.64
  4. Step 4: Simplify right side
    18,597.44x = 243,724,298.75
  5. Step 5: Solve for x
    x = 243,724,298.75/18,597.44
  6. Step 6: Final answer
    x = 13,105.26

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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.