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Finding the Fourth Proportional to 6,380.68, 9,571.20 and 1,763.68

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Solution

The fourth proportional to 6,380.68, 9,571.20 and 1,763.68 is: 2,645.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,380.68 : 9,571.20 = 1,763.68 : x
  2. Step 2: Convert to fraction form
    6,380.68/9,571.20 = 1,763.68/x
  3. Step 3: Cross multiply
    6,380.68x = 9,571.20 × 1,763.68
  4. Step 4: Simplify right side
    6,380.68x = 16,880,534.02
  5. Step 5: Solve for x
    x = 16,880,534.02/6,380.68
  6. Step 6: Final answer
    x = 2,645.57

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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.