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Finding the Fourth Proportional to 4,757.64, 7,135.92 and 1,294.64

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Solution

The fourth proportional to 4,757.64, 7,135.92 and 1,294.64 is: 1,941.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,757.64 : 7,135.92 = 1,294.64 : x
  2. Step 2: Convert to fraction form
    4,757.64/7,135.92 = 1,294.64/x
  3. Step 3: Cross multiply
    4,757.64x = 7,135.92 × 1,294.64
  4. Step 4: Simplify right side
    4,757.64x = 9,238,447.47
  5. Step 5: Solve for x
    x = 9,238,447.47/4,757.64
  6. Step 6: Final answer
    x = 1,941.81

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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.