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Finding the Fourth Proportional to 11,203.60, 16,791.90 and 6,514.60

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Solution

The fourth proportional to 11,203.60, 16,791.90 and 6,514.60 is: 9,764.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,203.60 : 16,791.90 = 6,514.60 : x
  2. Step 2: Convert to fraction form
    11,203.60/16,791.90 = 6,514.60/x
  3. Step 3: Cross multiply
    11,203.60x = 16,791.90 × 6,514.60
  4. Step 4: Simplify right side
    11,203.60x = 109,392,511.74
  5. Step 5: Solve for x
    x = 109,392,511.74/11,203.60
  6. Step 6: Final answer
    x = 9,764.05

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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.