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Finding the Fourth Proportional to 84,797.70, 127,196.55 and 25,627.20

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Solution

The fourth proportional to 84,797.70, 127,196.55 and 25,627.20 is: 38,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,797.70 : 127,196.55 = 25,627.20 : x
  2. Step 2: Convert to fraction form
    84,797.70/127,196.55 = 25,627.20/x
  3. Step 3: Cross multiply
    84,797.70x = 127,196.55 × 25,627.20
  4. Step 4: Simplify right side
    84,797.70x = 3,259,691,426.16
  5. Step 5: Solve for x
    x = 3,259,691,426.16/84,797.70
  6. Step 6: Final answer
    x = 38,440.80

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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.