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Finding the Fourth Proportional to 11,591.04, 15,958.89 and 9,069.96

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Solution

The fourth proportional to 11,591.04, 15,958.89 and 9,069.96 is: 12,487.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,591.04 : 15,958.89 = 9,069.96 : x
  2. Step 2: Convert to fraction form
    11,591.04/15,958.89 = 9,069.96/x
  3. Step 3: Cross multiply
    11,591.04x = 15,958.89 × 9,069.96
  4. Step 4: Simplify right side
    11,591.04x = 144,746,493.94
  5. Step 5: Solve for x
    x = 144,746,493.94/11,591.04
  6. Step 6: Final answer
    x = 12,487.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.