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Finding the Fourth Proportional to 53,765.78, 80,665.07 and 27,488.97

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Solution

The fourth proportional to 53,765.78, 80,665.07 and 27,488.97 is: 41,241.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,765.78 : 80,665.07 = 27,488.97 : x
  2. Step 2: Convert to fraction form
    53,765.78/80,665.07 = 27,488.97/x
  3. Step 3: Cross multiply
    53,765.78x = 80,665.07 × 27,488.97
  4. Step 4: Simplify right side
    53,765.78x = 2,217,399,551.83
  5. Step 5: Solve for x
    x = 2,217,399,551.83/53,765.78
  6. Step 6: Final answer
    x = 41,241.84

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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.