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Finding the Fourth Proportional to 7,805.55, 11,687.56 and 6,099.94

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Solution

The fourth proportional to 7,805.55, 11,687.56 and 6,099.94 is: 9,133.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,805.55 : 11,687.56 = 6,099.94 : x
  2. Step 2: Convert to fraction form
    7,805.55/11,687.56 = 6,099.94/x
  3. Step 3: Cross multiply
    7,805.55x = 11,687.56 × 6,099.94
  4. Step 4: Simplify right side
    7,805.55x = 71,293,414.75
  5. Step 5: Solve for x
    x = 71,293,414.75/7,805.55
  6. Step 6: Final answer
    x = 9,133.68

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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.