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Finding the Fourth Proportional to 5,654.40, 8,481.78 and 4,827.48

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Solution

The fourth proportional to 5,654.40, 8,481.78 and 4,827.48 is: 7,241.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,654.40 : 8,481.78 = 4,827.48 : x
  2. Step 2: Convert to fraction form
    5,654.40/8,481.78 = 4,827.48/x
  3. Step 3: Cross multiply
    5,654.40x = 8,481.78 × 4,827.48
  4. Step 4: Simplify right side
    5,654.40x = 40,945,623.31
  5. Step 5: Solve for x
    x = 40,945,623.31/5,654.40
  6. Step 6: Final answer
    x = 7,241.37

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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.