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Finding the Fourth Proportional to 12,481.35, 17,226.44 and 7,445.89

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Solution

The fourth proportional to 12,481.35, 17,226.44 and 7,445.89 is: 10,276.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.35 : 17,226.44 = 7,445.89 : x
  2. Step 2: Convert to fraction form
    12,481.35/17,226.44 = 7,445.89/x
  3. Step 3: Cross multiply
    12,481.35x = 17,226.44 × 7,445.89
  4. Step 4: Simplify right side
    12,481.35x = 128,266,177.33
  5. Step 5: Solve for x
    x = 128,266,177.33/12,481.35
  6. Step 6: Final answer
    x = 10,276.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.