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Finding the Fourth Proportional to 84,504.36, 126,748.98 and 25,353.24

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Solution

The fourth proportional to 84,504.36, 126,748.98 and 25,353.24 is: 38,027.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,504.36 : 126,748.98 = 25,353.24 : x
  2. Step 2: Convert to fraction form
    84,504.36/126,748.98 = 25,353.24/x
  3. Step 3: Cross multiply
    84,504.36x = 126,748.98 × 25,353.24
  4. Step 4: Simplify right side
    84,504.36x = 3,213,497,309.70
  5. Step 5: Solve for x
    x = 3,213,497,309.70/84,504.36
  6. Step 6: Final answer
    x = 38,027.59

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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.