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Finding the Fourth Proportional to 18,704.48, 25,809.84 and 10,745.60

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Solution

The fourth proportional to 18,704.48, 25,809.84 and 10,745.60 is: 14,827.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.48 : 25,809.84 = 10,745.60 : x
  2. Step 2: Convert to fraction form
    18,704.48/25,809.84 = 10,745.60/x
  3. Step 3: Cross multiply
    18,704.48x = 25,809.84 × 10,745.60
  4. Step 4: Simplify right side
    18,704.48x = 277,342,216.70
  5. Step 5: Solve for x
    x = 277,342,216.70/18,704.48
  6. Step 6: Final answer
    x = 14,827.58

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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.