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Finding the Fourth Proportional to 26,194.88, 36,138.84 and 18,638.84

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Solution

The fourth proportional to 26,194.88, 36,138.84 and 18,638.84 is: 25,714.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,194.88 : 36,138.84 = 18,638.84 : x
  2. Step 2: Convert to fraction form
    26,194.88/36,138.84 = 18,638.84/x
  3. Step 3: Cross multiply
    26,194.88x = 36,138.84 × 18,638.84
  4. Step 4: Simplify right side
    26,194.88x = 673,586,056.55
  5. Step 5: Solve for x
    x = 673,586,056.55/26,194.88
  6. Step 6: Final answer
    x = 25,714.42

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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.