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Finding the Fourth Proportional to 18,191.79, 27,295.79 and 17,896.55

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Solution

The fourth proportional to 18,191.79, 27,295.79 and 17,896.55 is: 26,852.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191.79 : 27,295.79 = 17,896.55 : x
  2. Step 2: Convert to fraction form
    18,191.79/27,295.79 = 17,896.55/x
  3. Step 3: Cross multiply
    18,191.79x = 27,295.79 × 17,896.55
  4. Step 4: Simplify right side
    18,191.79x = 488,500,244.56
  5. Step 5: Solve for x
    x = 488,500,244.56/18,191.79
  6. Step 6: Final answer
    x = 26,852.79

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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.