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Finding the Fourth Proportional to 25,591.88, 38,382.53 and 6,867.47

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Solution

The fourth proportional to 25,591.88, 38,382.53 and 6,867.47 is: 10,299.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,591.88 : 38,382.53 = 6,867.47 : x
  2. Step 2: Convert to fraction form
    25,591.88/38,382.53 = 6,867.47/x
  3. Step 3: Cross multiply
    25,591.88x = 38,382.53 × 6,867.47
  4. Step 4: Simplify right side
    25,591.88x = 263,590,647.05
  5. Step 5: Solve for x
    x = 263,590,647.05/25,591.88
  6. Step 6: Final answer
    x = 10,299.78

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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.