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Finding the Fourth Proportional to 4,892.55, 7,338.84 and 3,162.39

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Solution

The fourth proportional to 4,892.55, 7,338.84 and 3,162.39 is: 4,743.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,892.55 : 7,338.84 = 3,162.39 : x
  2. Step 2: Convert to fraction form
    4,892.55/7,338.84 = 3,162.39/x
  3. Step 3: Cross multiply
    4,892.55x = 7,338.84 × 3,162.39
  4. Step 4: Simplify right side
    4,892.55x = 23,208,274.23
  5. Step 5: Solve for x
    x = 23,208,274.23/4,892.55
  6. Step 6: Final answer
    x = 4,743.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.