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Finding the Fourth Proportional to 84,824.82, 127,260.72 and 25,660.80

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Solution

The fourth proportional to 84,824.82, 127,260.72 and 25,660.80 is: 38,498.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,824.82 : 127,260.72 = 25,660.80 : x
  2. Step 2: Convert to fraction form
    84,824.82/127,260.72 = 25,660.80/x
  3. Step 3: Cross multiply
    84,824.82x = 127,260.72 × 25,660.80
  4. Step 4: Simplify right side
    84,824.82x = 3,265,611,883.78
  5. Step 5: Solve for x
    x = 3,265,611,883.78/84,824.82
  6. Step 6: Final answer
    x = 38,498.31

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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.