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Finding the Fourth Proportional to 7,611.56, 10,491.39 and 5,092.77

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Solution

The fourth proportional to 7,611.56, 10,491.39 and 5,092.77 is: 7,019.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.56 : 10,491.39 = 5,092.77 : x
  2. Step 2: Convert to fraction form
    7,611.56/10,491.39 = 5,092.77/x
  3. Step 3: Cross multiply
    7,611.56x = 10,491.39 × 5,092.77
  4. Step 4: Simplify right side
    7,611.56x = 53,430,236.25
  5. Step 5: Solve for x
    x = 53,430,236.25/7,611.56
  6. Step 6: Final answer
    x = 7,019.62

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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.