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Finding the Fourth Proportional to 3,793.12, 5,687.64 and 2,913.44

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Solution

The fourth proportional to 3,793.12, 5,687.64 and 2,913.44 is: 4,368.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,793.12 : 5,687.64 = 2,913.44 : x
  2. Step 2: Convert to fraction form
    3,793.12/5,687.64 = 2,913.44/x
  3. Step 3: Cross multiply
    3,793.12x = 5,687.64 × 2,913.44
  4. Step 4: Simplify right side
    3,793.12x = 16,570,569.44
  5. Step 5: Solve for x
    x = 16,570,569.44/3,793.12
  6. Step 6: Final answer
    x = 4,368.59

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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.