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Finding the Fourth Proportional to 5,740.57, 7,922.82 and 3,223.72

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Solution

The fourth proportional to 5,740.57, 7,922.82 and 3,223.72 is: 4,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,740.57 : 7,922.82 = 3,223.72 : x
  2. Step 2: Convert to fraction form
    5,740.57/7,922.82 = 3,223.72/x
  3. Step 3: Cross multiply
    5,740.57x = 7,922.82 × 3,223.72
  4. Step 4: Simplify right side
    5,740.57x = 25,540,953.29
  5. Step 5: Solve for x
    x = 25,540,953.29/5,740.57
  6. Step 6: Final answer
    x = 4,449.20

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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.