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Finding the Fourth Proportional to 5,505.68, 7,600.78 and 4,243.98

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Solution

The fourth proportional to 5,505.68, 7,600.78 and 4,243.98 is: 5,858.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,505.68 : 7,600.78 = 4,243.98 : x
  2. Step 2: Convert to fraction form
    5,505.68/7,600.78 = 4,243.98/x
  3. Step 3: Cross multiply
    5,505.68x = 7,600.78 × 4,243.98
  4. Step 4: Simplify right side
    5,505.68x = 32,257,558.30
  5. Step 5: Solve for x
    x = 32,257,558.30/5,505.68
  6. Step 6: Final answer
    x = 5,858.96

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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.