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Finding the Fourth Proportional to 4,791.74, 7,187.55 and 1,671.74

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Solution

The fourth proportional to 4,791.74, 7,187.55 and 1,671.74 is: 2,507.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.74 : 7,187.55 = 1,671.74 : x
  2. Step 2: Convert to fraction form
    4,791.74/7,187.55 = 1,671.74/x
  3. Step 3: Cross multiply
    4,791.74x = 7,187.55 × 1,671.74
  4. Step 4: Simplify right side
    4,791.74x = 12,015,714.84
  5. Step 5: Solve for x
    x = 12,015,714.84/4,791.74
  6. Step 6: Final answer
    x = 2,507.59

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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.