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Finding the Fourth Proportional to 17,947.60, 26,892.60 and 16,910.80

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Solution

The fourth proportional to 17,947.60, 26,892.60 and 16,910.80 is: 25,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,947.60 : 26,892.60 = 16,910.80 : x
  2. Step 2: Convert to fraction form
    17,947.60/26,892.60 = 16,910.80/x
  3. Step 3: Cross multiply
    17,947.60x = 26,892.60 × 16,910.80
  4. Step 4: Simplify right side
    17,947.60x = 454,775,380.08
  5. Step 5: Solve for x
    x = 454,775,380.08/17,947.60
  6. Step 6: Final answer
    x = 25,339.06

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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.