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Finding the Fourth Proportional to 8,651.12, 12,984.88 and 5,354.24

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Solution

The fourth proportional to 8,651.12, 12,984.88 and 5,354.24 is: 8,036.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.12 : 12,984.88 = 5,354.24 : x
  2. Step 2: Convert to fraction form
    8,651.12/12,984.88 = 5,354.24/x
  3. Step 3: Cross multiply
    8,651.12x = 12,984.88 × 5,354.24
  4. Step 4: Simplify right side
    8,651.12x = 69,524,163.89
  5. Step 5: Solve for x
    x = 69,524,163.89/8,651.12
  6. Step 6: Final answer
    x = 8,036.44

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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.