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Finding the Fourth Proportional to 5,234.45, 7,852.82 and 1,724.31

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Solution

The fourth proportional to 5,234.45, 7,852.82 and 1,724.31 is: 2,586.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,234.45 : 7,852.82 = 1,724.31 : x
  2. Step 2: Convert to fraction form
    5,234.45/7,852.82 = 1,724.31/x
  3. Step 3: Cross multiply
    5,234.45x = 7,852.82 × 1,724.31
  4. Step 4: Simplify right side
    5,234.45x = 13,540,687.43
  5. Step 5: Solve for x
    x = 13,540,687.43/5,234.45
  6. Step 6: Final answer
    x = 2,586.84

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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.