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Finding the Fourth Proportional to 8,617.76, 12,923.89 and 3,352.42

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Solution

The fourth proportional to 8,617.76, 12,923.89 and 3,352.42 is: 5,027.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.76 : 12,923.89 = 3,352.42 : x
  2. Step 2: Convert to fraction form
    8,617.76/12,923.89 = 3,352.42/x
  3. Step 3: Cross multiply
    8,617.76x = 12,923.89 × 3,352.42
  4. Step 4: Simplify right side
    8,617.76x = 43,326,315.09
  5. Step 5: Solve for x
    x = 43,326,315.09/8,617.76
  6. Step 6: Final answer
    x = 5,027.56

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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.