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Finding the Fourth Proportional to 7,685.96, 11,526.96 and 2,755.04

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Solution

The fourth proportional to 7,685.96, 11,526.96 and 2,755.04 is: 4,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.96 : 11,526.96 = 2,755.04 : x
  2. Step 2: Convert to fraction form
    7,685.96/11,526.96 = 2,755.04/x
  3. Step 3: Cross multiply
    7,685.96x = 11,526.96 × 2,755.04
  4. Step 4: Simplify right side
    7,685.96x = 31,757,235.88
  5. Step 5: Solve for x
    x = 31,757,235.88/7,685.96
  6. Step 6: Final answer
    x = 4,131.85

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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.