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Finding the Fourth Proportional to 14,149.44, 19,481.48 and 10,781.44

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Solution

The fourth proportional to 14,149.44, 19,481.48 and 10,781.44 is: 14,844.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.44 : 19,481.48 = 10,781.44 : x
  2. Step 2: Convert to fraction form
    14,149.44/19,481.48 = 10,781.44/x
  3. Step 3: Cross multiply
    14,149.44x = 19,481.48 × 10,781.44
  4. Step 4: Simplify right side
    14,149.44x = 210,038,407.73
  5. Step 5: Solve for x
    x = 210,038,407.73/14,149.44
  6. Step 6: Final answer
    x = 14,844.29

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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.