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Finding the Fourth Proportional to 5,510.76, 7,600.14 and 3,922.44

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Solution

The fourth proportional to 5,510.76, 7,600.14 and 3,922.44 is: 5,409.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,510.76 : 7,600.14 = 3,922.44 : x
  2. Step 2: Convert to fraction form
    5,510.76/7,600.14 = 3,922.44/x
  3. Step 3: Cross multiply
    5,510.76x = 7,600.14 × 3,922.44
  4. Step 4: Simplify right side
    5,510.76x = 29,811,093.14
  5. Step 5: Solve for x
    x = 29,811,093.14/5,510.76
  6. Step 6: Final answer
    x = 5,409.62

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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.