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Finding the Fourth Proportional to 18,592.25, 25,658.68 and 11,520.05

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Solution

The fourth proportional to 18,592.25, 25,658.68 and 11,520.05 is: 15,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,592.25 : 25,658.68 = 11,520.05 : x
  2. Step 2: Convert to fraction form
    18,592.25/25,658.68 = 11,520.05/x
  3. Step 3: Cross multiply
    18,592.25x = 25,658.68 × 11,520.05
  4. Step 4: Simplify right side
    18,592.25x = 295,589,276.53
  5. Step 5: Solve for x
    x = 295,589,276.53/18,592.25
  6. Step 6: Final answer
    x = 15,898.52

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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.