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Finding the Fourth Proportional to 3,351.40, 5,027.34 and 886.19

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Solution

The fourth proportional to 3,351.40, 5,027.34 and 886.19 is: 1,329.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.40 : 5,027.34 = 886.19 : x
  2. Step 2: Convert to fraction form
    3,351.40/5,027.34 = 886.19/x
  3. Step 3: Cross multiply
    3,351.40x = 5,027.34 × 886.19
  4. Step 4: Simplify right side
    3,351.40x = 4,455,163.65
  5. Step 5: Solve for x
    x = 4,455,163.65/3,351.40
  6. Step 6: Final answer
    x = 1,329.35

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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.