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Finding the Fourth Proportional to 25,793.60, 38,690.40 and 22,619.20

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Solution

The fourth proportional to 25,793.60, 38,690.40 and 22,619.20 is: 33,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,793.60 : 38,690.40 = 22,619.20 : x
  2. Step 2: Convert to fraction form
    25,793.60/38,690.40 = 22,619.20/x
  3. Step 3: Cross multiply
    25,793.60x = 38,690.40 × 22,619.20
  4. Step 4: Simplify right side
    25,793.60x = 875,145,895.68
  5. Step 5: Solve for x
    x = 875,145,895.68/25,793.60
  6. Step 6: Final answer
    x = 33,928.80

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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.