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Finding the Fourth Proportional to 4,865.37, 7,282.17 and 2,640.84

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Solution

The fourth proportional to 4,865.37, 7,282.17 and 2,640.84 is: 3,952.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,865.37 : 7,282.17 = 2,640.84 : x
  2. Step 2: Convert to fraction form
    4,865.37/7,282.17 = 2,640.84/x
  3. Step 3: Cross multiply
    4,865.37x = 7,282.17 × 2,640.84
  4. Step 4: Simplify right side
    4,865.37x = 19,231,045.82
  5. Step 5: Solve for x
    x = 19,231,045.82/4,865.37
  6. Step 6: Final answer
    x = 3,952.64

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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.