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Finding the Fourth Proportional to 18,181.71, 25,104.87 and 14,195.84

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Solution

The fourth proportional to 18,181.71, 25,104.87 and 14,195.84 is: 19,601.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181.71 : 25,104.87 = 14,195.84 : x
  2. Step 2: Convert to fraction form
    18,181.71/25,104.87 = 14,195.84/x
  3. Step 3: Cross multiply
    18,181.71x = 25,104.87 × 14,195.84
  4. Step 4: Simplify right side
    18,181.71x = 356,384,592.22
  5. Step 5: Solve for x
    x = 356,384,592.22/18,181.71
  6. Step 6: Final answer
    x = 19,601.27

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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.