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Finding the Fourth Proportional to 9,080.79, 12,581.93 and 8,883.96

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Solution

The fourth proportional to 9,080.79, 12,581.93 and 8,883.96 is: 12,309.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,080.79 : 12,581.93 = 8,883.96 : x
  2. Step 2: Convert to fraction form
    9,080.79/12,581.93 = 8,883.96/x
  3. Step 3: Cross multiply
    9,080.79x = 12,581.93 × 8,883.96
  4. Step 4: Simplify right side
    9,080.79x = 111,777,318.42
  5. Step 5: Solve for x
    x = 111,777,318.42/9,080.79
  6. Step 6: Final answer
    x = 12,309.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.