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Finding the Fourth Proportional to 17,180.20, 25,751.10 and 9,788.20

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Solution

The fourth proportional to 17,180.20, 25,751.10 and 9,788.20 is: 14,671.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,180.20 : 25,751.10 = 9,788.20 : x
  2. Step 2: Convert to fraction form
    17,180.20/25,751.10 = 9,788.20/x
  3. Step 3: Cross multiply
    17,180.20x = 25,751.10 × 9,788.20
  4. Step 4: Simplify right side
    17,180.20x = 252,056,917.02
  5. Step 5: Solve for x
    x = 252,056,917.02/17,180.20
  6. Step 6: Final answer
    x = 14,671.36

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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.