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Finding the Fourth Proportional to 8,798.12, 13,198.67 and 3,251.49

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Solution

The fourth proportional to 8,798.12, 13,198.67 and 3,251.49 is: 4,877.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.12 : 13,198.67 = 3,251.49 : x
  2. Step 2: Convert to fraction form
    8,798.12/13,198.67 = 3,251.49/x
  3. Step 3: Cross multiply
    8,798.12x = 13,198.67 × 3,251.49
  4. Step 4: Simplify right side
    8,798.12x = 42,915,343.52
  5. Step 5: Solve for x
    x = 42,915,343.52/8,798.12
  6. Step 6: Final answer
    x = 4,877.79

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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.