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Finding the Fourth Proportional to 18,185.92, 25,097.12 and 11,814.08

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Solution

The fourth proportional to 18,185.92, 25,097.12 and 11,814.08 is: 16,303.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.92 : 25,097.12 = 11,814.08 : x
  2. Step 2: Convert to fraction form
    18,185.92/25,097.12 = 11,814.08/x
  3. Step 3: Cross multiply
    18,185.92x = 25,097.12 × 11,814.08
  4. Step 4: Simplify right side
    18,185.92x = 296,499,383.45
  5. Step 5: Solve for x
    x = 296,499,383.45/18,185.92
  6. Step 6: Final answer
    x = 16,303.79

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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.