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Finding the Fourth Proportional to 7,073.57, 10,611.63 and 3,124.82

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Solution

The fourth proportional to 7,073.57, 10,611.63 and 3,124.82 is: 4,687.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.57 : 10,611.63 = 3,124.82 : x
  2. Step 2: Convert to fraction form
    7,073.57/10,611.63 = 3,124.82/x
  3. Step 3: Cross multiply
    7,073.57x = 10,611.63 × 3,124.82
  4. Step 4: Simplify right side
    7,073.57x = 33,159,380.60
  5. Step 5: Solve for x
    x = 33,159,380.60/7,073.57
  6. Step 6: Final answer
    x = 4,687.79

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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.