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Finding the Fourth Proportional to 17,698.80, 26,548.20 and 12,169.20

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Solution

The fourth proportional to 17,698.80, 26,548.20 and 12,169.20 is: 18,253.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,698.80 : 26,548.20 = 12,169.20 : x
  2. Step 2: Convert to fraction form
    17,698.80/26,548.20 = 12,169.20/x
  3. Step 3: Cross multiply
    17,698.80x = 26,548.20 × 12,169.20
  4. Step 4: Simplify right side
    17,698.80x = 323,070,355.44
  5. Step 5: Solve for x
    x = 323,070,355.44/17,698.80
  6. Step 6: Final answer
    x = 18,253.80

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Similar ratio
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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.