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Finding the Fourth Proportional to 7,611.92, 10,504.94 and 4,254.75

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Solution

The fourth proportional to 7,611.92, 10,504.94 and 4,254.75 is: 5,871.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.92 : 10,504.94 = 4,254.75 : x
  2. Step 2: Convert to fraction form
    7,611.92/10,504.94 = 4,254.75/x
  3. Step 3: Cross multiply
    7,611.92x = 10,504.94 × 4,254.75
  4. Step 4: Simplify right side
    7,611.92x = 44,695,856.73
  5. Step 5: Solve for x
    x = 44,695,856.73/7,611.92
  6. Step 6: Final answer
    x = 5,871.82

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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.