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Finding the Fourth Proportional to 3,951.48, 5,927.09 and 1,872.48

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Solution

The fourth proportional to 3,951.48, 5,927.09 and 1,872.48 is: 2,808.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.48 : 5,927.09 = 1,872.48 : x
  2. Step 2: Convert to fraction form
    3,951.48/5,927.09 = 1,872.48/x
  3. Step 3: Cross multiply
    3,951.48x = 5,927.09 × 1,872.48
  4. Step 4: Simplify right side
    3,951.48x = 11,098,348.12
  5. Step 5: Solve for x
    x = 11,098,348.12/3,951.48
  6. Step 6: Final answer
    x = 2,808.66

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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.