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Finding the Fourth Proportional to 25,907.19, 38,859.17 and 8,375.55

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Solution

The fourth proportional to 25,907.19, 38,859.17 and 8,375.55 is: 12,562.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,907.19 : 38,859.17 = 8,375.55 : x
  2. Step 2: Convert to fraction form
    25,907.19/38,859.17 = 8,375.55/x
  3. Step 3: Cross multiply
    25,907.19x = 38,859.17 × 8,375.55
  4. Step 4: Simplify right side
    25,907.19x = 325,466,879.42
  5. Step 5: Solve for x
    x = 325,466,879.42/25,907.19
  6. Step 6: Final answer
    x = 12,562.80

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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.