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Finding the Fourth Proportional to 5,859.79, 8,087.97 and 3,974.53

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Solution

The fourth proportional to 5,859.79, 8,087.97 and 3,974.53 is: 5,485.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,859.79 : 8,087.97 = 3,974.53 : x
  2. Step 2: Convert to fraction form
    5,859.79/8,087.97 = 3,974.53/x
  3. Step 3: Cross multiply
    5,859.79x = 8,087.97 × 3,974.53
  4. Step 4: Simplify right side
    5,859.79x = 32,145,886.65
  5. Step 5: Solve for x
    x = 32,145,886.65/5,859.79
  6. Step 6: Final answer
    x = 5,485.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.