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Finding the Fourth Proportional to 25,375.80, 38,063.70 and 11,524.80

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Solution

The fourth proportional to 25,375.80, 38,063.70 and 11,524.80 is: 17,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,375.80 : 38,063.70 = 11,524.80 : x
  2. Step 2: Convert to fraction form
    25,375.80/38,063.70 = 11,524.80/x
  3. Step 3: Cross multiply
    25,375.80x = 38,063.70 × 11,524.80
  4. Step 4: Simplify right side
    25,375.80x = 438,676,529.76
  5. Step 5: Solve for x
    x = 438,676,529.76/25,375.80
  6. Step 6: Final answer
    x = 17,287.20

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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.