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Finding the Fourth Proportional to 5,711.32, 7,882.32 and 3,353.68

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Solution

The fourth proportional to 5,711.32, 7,882.32 and 3,353.68 is: 4,628.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.32 : 7,882.32 = 3,353.68 : x
  2. Step 2: Convert to fraction form
    5,711.32/7,882.32 = 3,353.68/x
  3. Step 3: Cross multiply
    5,711.32x = 7,882.32 × 3,353.68
  4. Step 4: Simplify right side
    5,711.32x = 26,434,778.94
  5. Step 5: Solve for x
    x = 26,434,778.94/5,711.32
  6. Step 6: Final answer
    x = 4,628.49

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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.