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Finding the Fourth Proportional to 25,361.52, 38,069.04 and 20,734.80

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Solution

The fourth proportional to 25,361.52, 38,069.04 and 20,734.80 is: 31,124.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,361.52 : 38,069.04 = 20,734.80 : x
  2. Step 2: Convert to fraction form
    25,361.52/38,069.04 = 20,734.80/x
  3. Step 3: Cross multiply
    25,361.52x = 38,069.04 × 20,734.80
  4. Step 4: Simplify right side
    25,361.52x = 789,353,930.59
  5. Step 5: Solve for x
    x = 789,353,930.59/25,361.52
  6. Step 6: Final answer
    x = 31,124.08

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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.