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Finding the Fourth Proportional to 17,743.70, 26,590.03 and 12,203.30

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Solution

The fourth proportional to 17,743.70, 26,590.03 and 12,203.30 is: 18,287.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,743.70 : 26,590.03 = 12,203.30 : x
  2. Step 2: Convert to fraction form
    17,743.70/26,590.03 = 12,203.30/x
  3. Step 3: Cross multiply
    17,743.70x = 26,590.03 × 12,203.30
  4. Step 4: Simplify right side
    17,743.70x = 324,485,949.64
  5. Step 5: Solve for x
    x = 324,485,949.64/17,743.70
  6. Step 6: Final answer
    x = 18,287.39

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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.