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Finding the Fourth Proportional to 18,149.52, 25,050.42 and 11,858.28

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Solution

The fourth proportional to 18,149.52, 25,050.42 and 11,858.28 is: 16,367.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.52 : 25,050.42 = 11,858.28 : x
  2. Step 2: Convert to fraction form
    18,149.52/25,050.42 = 11,858.28/x
  3. Step 3: Cross multiply
    18,149.52x = 25,050.42 × 11,858.28
  4. Step 4: Simplify right side
    18,149.52x = 297,054,894.48
  5. Step 5: Solve for x
    x = 297,054,894.48/18,149.52
  6. Step 6: Final answer
    x = 16,367.09

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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.