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Finding the Fourth Proportional to 5,702.51, 8,553.90 and 3,231.20

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Solution

The fourth proportional to 5,702.51, 8,553.90 and 3,231.20 is: 4,846.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,702.51 : 8,553.90 = 3,231.20 : x
  2. Step 2: Convert to fraction form
    5,702.51/8,553.90 = 3,231.20/x
  3. Step 3: Cross multiply
    5,702.51x = 8,553.90 × 3,231.20
  4. Step 4: Simplify right side
    5,702.51x = 27,639,361.68
  5. Step 5: Solve for x
    x = 27,639,361.68/5,702.51
  6. Step 6: Final answer
    x = 4,846.88

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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.