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Finding the Fourth Proportional to 8,395.80, 12,591.45 and 2,550.84

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Solution

The fourth proportional to 8,395.80, 12,591.45 and 2,550.84 is: 3,825.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,395.80 : 12,591.45 = 2,550.84 : x
  2. Step 2: Convert to fraction form
    8,395.80/12,591.45 = 2,550.84/x
  3. Step 3: Cross multiply
    8,395.80x = 12,591.45 × 2,550.84
  4. Step 4: Simplify right side
    8,395.80x = 32,118,774.32
  5. Step 5: Solve for x
    x = 32,118,774.32/8,395.80
  6. Step 6: Final answer
    x = 3,825.58

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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.