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Finding the Fourth Proportional to 4,935.38, 7,396.53 and 2,157.86

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Solution

The fourth proportional to 4,935.38, 7,396.53 and 2,157.86 is: 3,233.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,935.38 : 7,396.53 = 2,157.86 : x
  2. Step 2: Convert to fraction form
    4,935.38/7,396.53 = 2,157.86/x
  3. Step 3: Cross multiply
    4,935.38x = 7,396.53 × 2,157.86
  4. Step 4: Simplify right side
    4,935.38x = 15,960,676.23
  5. Step 5: Solve for x
    x = 15,960,676.23/4,935.38
  6. Step 6: Final answer
    x = 3,233.93

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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.