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Finding the Fourth Proportional to 25,571.82, 38,366.94 and 8,934.30

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Solution

The fourth proportional to 25,571.82, 38,366.94 and 8,934.30 is: 13,404.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,571.82 : 38,366.94 = 8,934.30 : x
  2. Step 2: Convert to fraction form
    25,571.82/38,366.94 = 8,934.30/x
  3. Step 3: Cross multiply
    25,571.82x = 38,366.94 × 8,934.30
  4. Step 4: Simplify right side
    25,571.82x = 342,781,752.04
  5. Step 5: Solve for x
    x = 342,781,752.04/25,571.82
  6. Step 6: Final answer
    x = 13,404.67

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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.