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Finding the Fourth Proportional to 5,757.90, 7,946.09 and 3,239.96

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Solution

The fourth proportional to 5,757.90, 7,946.09 and 3,239.96 is: 4,471.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,757.90 : 7,946.09 = 3,239.96 : x
  2. Step 2: Convert to fraction form
    5,757.90/7,946.09 = 3,239.96/x
  3. Step 3: Cross multiply
    5,757.90x = 7,946.09 × 3,239.96
  4. Step 4: Simplify right side
    5,757.90x = 25,744,957.83
  5. Step 5: Solve for x
    x = 25,744,957.83/5,757.90
  6. Step 6: Final answer
    x = 4,471.24

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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.