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Finding the Fourth Proportional to 8,450.70, 12,672.35 and 4,009.63

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Solution

The fourth proportional to 8,450.70, 12,672.35 and 4,009.63 is: 6,012.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,450.70 : 12,672.35 = 4,009.63 : x
  2. Step 2: Convert to fraction form
    8,450.70/12,672.35 = 4,009.63/x
  3. Step 3: Cross multiply
    8,450.70x = 12,672.35 × 4,009.63
  4. Step 4: Simplify right side
    8,450.70x = 50,811,468.72
  5. Step 5: Solve for x
    x = 50,811,468.72/8,450.70
  6. Step 6: Final answer
    x = 6,012.69

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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.