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Finding the Fourth Proportional to 3,833.68, 5,291.20 and 2,342.92

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Solution

The fourth proportional to 3,833.68, 5,291.20 and 2,342.92 is: 3,233.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,833.68 : 5,291.20 = 2,342.92 : x
  2. Step 2: Convert to fraction form
    3,833.68/5,291.20 = 2,342.92/x
  3. Step 3: Cross multiply
    3,833.68x = 5,291.20 × 2,342.92
  4. Step 4: Simplify right side
    3,833.68x = 12,396,858.30
  5. Step 5: Solve for x
    x = 12,396,858.30/3,833.68
  6. Step 6: Final answer
    x = 3,233.67

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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.