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Finding the Fourth Proportional to 18,323.98, 27,487.13 and 5,177.37

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Solution

The fourth proportional to 18,323.98, 27,487.13 and 5,177.37 is: 7,766.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.98 : 27,487.13 = 5,177.37 : x
  2. Step 2: Convert to fraction form
    18,323.98/27,487.13 = 5,177.37/x
  3. Step 3: Cross multiply
    18,323.98x = 27,487.13 × 5,177.37
  4. Step 4: Simplify right side
    18,323.98x = 142,311,042.25
  5. Step 5: Solve for x
    x = 142,311,042.25/18,323.98
  6. Step 6: Final answer
    x = 7,766.38

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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.