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Finding the Fourth Proportional to 25,378.68, 38,059.92 and 8,734.68

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Solution

The fourth proportional to 25,378.68, 38,059.92 and 8,734.68 is: 13,099.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,378.68 : 38,059.92 = 8,734.68 : x
  2. Step 2: Convert to fraction form
    25,378.68/38,059.92 = 8,734.68/x
  3. Step 3: Cross multiply
    25,378.68x = 38,059.92 × 8,734.68
  4. Step 4: Simplify right side
    25,378.68x = 332,441,222.03
  5. Step 5: Solve for x
    x = 332,441,222.03/25,378.68
  6. Step 6: Final answer
    x = 13,099.23

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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.