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Finding the Fourth Proportional to 5,325.45, 7,995.21 and 4,550.42

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Solution

The fourth proportional to 5,325.45, 7,995.21 and 4,550.42 is: 6,831.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.45 : 7,995.21 = 4,550.42 : x
  2. Step 2: Convert to fraction form
    5,325.45/7,995.21 = 4,550.42/x
  3. Step 3: Cross multiply
    5,325.45x = 7,995.21 × 4,550.42
  4. Step 4: Simplify right side
    5,325.45x = 36,381,563.49
  5. Step 5: Solve for x
    x = 36,381,563.49/5,325.45
  6. Step 6: Final answer
    x = 6,831.64

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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.