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Finding the Fourth Proportional to 25,158.06, 37,738.71 and 8,515.80

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Solution

The fourth proportional to 25,158.06, 37,738.71 and 8,515.80 is: 12,774.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,158.06 : 37,738.71 = 8,515.80 : x
  2. Step 2: Convert to fraction form
    25,158.06/37,738.71 = 8,515.80/x
  3. Step 3: Cross multiply
    25,158.06x = 37,738.71 × 8,515.80
  4. Step 4: Simplify right side
    25,158.06x = 321,375,306.62
  5. Step 5: Solve for x
    x = 321,375,306.62/25,158.06
  6. Step 6: Final answer
    x = 12,774.25

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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.