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Finding the Fourth Proportional to 3,867.01, 5,756.07 and 3,687.73

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Solution

The fourth proportional to 3,867.01, 5,756.07 and 3,687.73 is: 5,489.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.01 : 5,756.07 = 3,687.73 : x
  2. Step 2: Convert to fraction form
    3,867.01/5,756.07 = 3,687.73/x
  3. Step 3: Cross multiply
    3,867.01x = 5,756.07 × 3,687.73
  4. Step 4: Simplify right side
    3,867.01x = 21,226,832.02
  5. Step 5: Solve for x
    x = 21,226,832.02/3,867.01
  6. Step 6: Final answer
    x = 5,489.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.