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Finding the Fourth Proportional to 4,958.77, 7,438.84 and 1,672.80

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Solution

The fourth proportional to 4,958.77, 7,438.84 and 1,672.80 is: 2,509.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,958.77 : 7,438.84 = 1,672.80 : x
  2. Step 2: Convert to fraction form
    4,958.77/7,438.84 = 1,672.80/x
  3. Step 3: Cross multiply
    4,958.77x = 7,438.84 × 1,672.80
  4. Step 4: Simplify right side
    4,958.77x = 12,443,691.55
  5. Step 5: Solve for x
    x = 12,443,691.55/4,958.77
  6. Step 6: Final answer
    x = 2,509.43

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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.