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Finding the Fourth Proportional to 4,700.61, 7,031.31 and 3,375.96

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Solution

The fourth proportional to 4,700.61, 7,031.31 and 3,375.96 is: 5,049.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,700.61 : 7,031.31 = 3,375.96 : x
  2. Step 2: Convert to fraction form
    4,700.61/7,031.31 = 3,375.96/x
  3. Step 3: Cross multiply
    4,700.61x = 7,031.31 × 3,375.96
  4. Step 4: Simplify right side
    4,700.61x = 23,737,421.31
  5. Step 5: Solve for x
    x = 23,737,421.31/4,700.61
  6. Step 6: Final answer
    x = 5,049.86

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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.