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Finding the Fourth Proportional to 84,634.60, 126,903.30 and 25,461.40

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Solution

The fourth proportional to 84,634.60, 126,903.30 and 25,461.40 is: 38,177.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,634.60 : 126,903.30 = 25,461.40 : x
  2. Step 2: Convert to fraction form
    84,634.60/126,903.30 = 25,461.40/x
  3. Step 3: Cross multiply
    84,634.60x = 126,903.30 × 25,461.40
  4. Step 4: Simplify right side
    84,634.60x = 3,231,135,682.62
  5. Step 5: Solve for x
    x = 3,231,135,682.62/84,634.60
  6. Step 6: Final answer
    x = 38,177.48

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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.