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Finding the Fourth Proportional to 7,611.12, 10,517.04 and 5,936.76

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Solution

The fourth proportional to 7,611.12, 10,517.04 and 5,936.76 is: 8,203.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.12 : 10,517.04 = 5,936.76 : x
  2. Step 2: Convert to fraction form
    7,611.12/10,517.04 = 5,936.76/x
  3. Step 3: Cross multiply
    7,611.12x = 10,517.04 × 5,936.76
  4. Step 4: Simplify right side
    7,611.12x = 62,437,142.39
  5. Step 5: Solve for x
    x = 62,437,142.39/7,611.12
  6. Step 6: Final answer
    x = 8,203.41

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Half scale
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Double scale
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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.