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Finding the Fourth Proportional to 5,330.92, 7,346.28 and 3,836.20

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Solution

The fourth proportional to 5,330.92, 7,346.28 and 3,836.20 is: 5,286.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,330.92 : 7,346.28 = 3,836.20 : x
  2. Step 2: Convert to fraction form
    5,330.92/7,346.28 = 3,836.20/x
  3. Step 3: Cross multiply
    5,330.92x = 7,346.28 × 3,836.20
  4. Step 4: Simplify right side
    5,330.92x = 28,181,799.34
  5. Step 5: Solve for x
    x = 28,181,799.34/5,330.92
  6. Step 6: Final answer
    x = 5,286.48

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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.