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Finding the Fourth Proportional to 5,722.44, 7,892.88 and 5,251.85

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Solution

The fourth proportional to 5,722.44, 7,892.88 and 5,251.85 is: 7,243.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,722.44 : 7,892.88 = 5,251.85 : x
  2. Step 2: Convert to fraction form
    5,722.44/7,892.88 = 5,251.85/x
  3. Step 3: Cross multiply
    5,722.44x = 7,892.88 × 5,251.85
  4. Step 4: Simplify right side
    5,722.44x = 41,452,254.69
  5. Step 5: Solve for x
    x = 41,452,254.69/5,722.44
  6. Step 6: Final answer
    x = 7,243.81

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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.