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Finding the Fourth Proportional to 5,249.80, 7,243.80 and 4,253.37

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Solution

The fourth proportional to 5,249.80, 7,243.80 and 4,253.37 is: 5,868.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.80 : 7,243.80 = 4,253.37 : x
  2. Step 2: Convert to fraction form
    5,249.80/7,243.80 = 4,253.37/x
  3. Step 3: Cross multiply
    5,249.80x = 7,243.80 × 4,253.37
  4. Step 4: Simplify right side
    5,249.80x = 30,810,561.61
  5. Step 5: Solve for x
    x = 30,810,561.61/5,249.80
  6. Step 6: Final answer
    x = 5,868.90

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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.