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Finding the Fourth Proportional to 4,958.88, 7,438.32 and 1,671.66

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Solution

The fourth proportional to 4,958.88, 7,438.32 and 1,671.66 is: 2,507.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,958.88 : 7,438.32 = 1,671.66 : x
  2. Step 2: Convert to fraction form
    4,958.88/7,438.32 = 1,671.66/x
  3. Step 3: Cross multiply
    4,958.88x = 7,438.32 × 1,671.66
  4. Step 4: Simplify right side
    4,958.88x = 12,434,342.01
  5. Step 5: Solve for x
    x = 12,434,342.01/4,958.88
  6. Step 6: Final answer
    x = 2,507.49

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Similar ratio
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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.