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Finding the Fourth Proportional to 7,674.20, 11,494.26 and 7,487.96

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Solution

The fourth proportional to 7,674.20, 11,494.26 and 7,487.96 is: 11,215.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,674.20 : 11,494.26 = 7,487.96 : x
  2. Step 2: Convert to fraction form
    7,674.20/11,494.26 = 7,487.96/x
  3. Step 3: Cross multiply
    7,674.20x = 11,494.26 × 7,487.96
  4. Step 4: Simplify right side
    7,674.20x = 86,068,559.11
  5. Step 5: Solve for x
    x = 86,068,559.11/7,674.20
  6. Step 6: Final answer
    x = 11,215.31

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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.