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Finding the Fourth Proportional to 9,659.39, 14,450.60 and 8,090.21

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Solution

The fourth proportional to 9,659.39, 14,450.60 and 8,090.21 is: 12,103.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,659.39 : 14,450.60 = 8,090.21 : x
  2. Step 2: Convert to fraction form
    9,659.39/14,450.60 = 8,090.21/x
  3. Step 3: Cross multiply
    9,659.39x = 14,450.60 × 8,090.21
  4. Step 4: Simplify right side
    9,659.39x = 116,908,444.98
  5. Step 5: Solve for x
    x = 116,908,444.98/9,659.39
  6. Step 6: Final answer
    x = 12,103.09

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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.