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Finding the Fourth Proportional to 7,610.94, 11,400.23 and 3,656.39

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Solution

The fourth proportional to 7,610.94, 11,400.23 and 3,656.39 is: 5,476.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,610.94 : 11,400.23 = 3,656.39 : x
  2. Step 2: Convert to fraction form
    7,610.94/11,400.23 = 3,656.39/x
  3. Step 3: Cross multiply
    7,610.94x = 11,400.23 × 3,656.39
  4. Step 4: Simplify right side
    7,610.94x = 41,683,611.69
  5. Step 5: Solve for x
    x = 41,683,611.69/7,610.94
  6. Step 6: Final answer
    x = 5,476.80

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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.