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Finding the Fourth Proportional to 25,121.80, 37,686.54 and 8,249.50

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Solution

The fourth proportional to 25,121.80, 37,686.54 and 8,249.50 is: 12,375.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,121.80 : 37,686.54 = 8,249.50 : x
  2. Step 2: Convert to fraction form
    25,121.80/37,686.54 = 8,249.50/x
  3. Step 3: Cross multiply
    25,121.80x = 37,686.54 × 8,249.50
  4. Step 4: Simplify right side
    25,121.80x = 310,894,923.30
  5. Step 5: Solve for x
    x = 310,894,923.30/25,121.80
  6. Step 6: Final answer
    x = 12,375.51

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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.