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Finding the Fourth Proportional to 11,486.96, 15,855.99 and 6,770.96

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Solution

The fourth proportional to 11,486.96, 15,855.99 and 6,770.96 is: 9,346.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,486.96 : 15,855.99 = 6,770.96 : x
  2. Step 2: Convert to fraction form
    11,486.96/15,855.99 = 6,770.96/x
  3. Step 3: Cross multiply
    11,486.96x = 15,855.99 × 6,770.96
  4. Step 4: Simplify right side
    11,486.96x = 107,360,274.05
  5. Step 5: Solve for x
    x = 107,360,274.05/11,486.96
  6. Step 6: Final answer
    x = 9,346.27

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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.