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Finding the Fourth Proportional to 25,939.25, 38,908.88 and 8,410.44

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Solution

The fourth proportional to 25,939.25, 38,908.88 and 8,410.44 is: 12,615.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,939.25 : 38,908.88 = 8,410.44 : x
  2. Step 2: Convert to fraction form
    25,939.25/38,908.88 = 8,410.44/x
  3. Step 3: Cross multiply
    25,939.25x = 38,908.88 × 8,410.44
  4. Step 4: Simplify right side
    25,939.25x = 327,240,800.71
  5. Step 5: Solve for x
    x = 327,240,800.71/25,939.25
  6. Step 6: Final answer
    x = 12,615.66

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Similar ratio
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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.