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Finding the Fourth Proportional to 18,144.52, 25,043.52 and 11,853.28

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Solution

The fourth proportional to 18,144.52, 25,043.52 and 11,853.28 is: 16,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.52 : 25,043.52 = 11,853.28 : x
  2. Step 2: Convert to fraction form
    18,144.52/25,043.52 = 11,853.28/x
  3. Step 3: Cross multiply
    18,144.52x = 25,043.52 × 11,853.28
  4. Step 4: Simplify right side
    18,144.52x = 296,847,854.75
  5. Step 5: Solve for x
    x = 296,847,854.75/18,144.52
  6. Step 6: Final answer
    x = 16,360.19

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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.