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Finding the Fourth Proportional to 84,797.20, 127,195.80 and 25,626.70

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Solution

The fourth proportional to 84,797.20, 127,195.80 and 25,626.70 is: 38,440.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,797.20 : 127,195.80 = 25,626.70 : x
  2. Step 2: Convert to fraction form
    84,797.20/127,195.80 = 25,626.70/x
  3. Step 3: Cross multiply
    84,797.20x = 127,195.80 × 25,626.70
  4. Step 4: Simplify right side
    84,797.20x = 3,259,608,607.86
  5. Step 5: Solve for x
    x = 3,259,608,607.86/84,797.20
  6. Step 6: Final answer
    x = 38,440.05

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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.