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Finding the Fourth Proportional to 25,839.45, 38,758.26 and 7,371.45

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Solution

The fourth proportional to 25,839.45, 38,758.26 and 7,371.45 is: 11,056.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,839.45 : 38,758.26 = 7,371.45 : x
  2. Step 2: Convert to fraction form
    25,839.45/38,758.26 = 7,371.45/x
  3. Step 3: Cross multiply
    25,839.45x = 38,758.26 × 7,371.45
  4. Step 4: Simplify right side
    25,839.45x = 285,704,575.68
  5. Step 5: Solve for x
    x = 285,704,575.68/25,839.45
  6. Step 6: Final answer
    x = 11,056.91

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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.