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Finding the Fourth Proportional to 67,261.88, 100,884.92 and 25,143.50

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Solution

The fourth proportional to 67,261.88, 100,884.92 and 25,143.50 is: 37,712.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,261.88 : 100,884.92 = 25,143.50 : x
  2. Step 2: Convert to fraction form
    67,261.88/100,884.92 = 25,143.50/x
  3. Step 3: Cross multiply
    67,261.88x = 100,884.92 × 25,143.50
  4. Step 4: Simplify right side
    67,261.88x = 2,536,599,355.88
  5. Step 5: Solve for x
    x = 2,536,599,355.88/67,261.88
  6. Step 6: Final answer
    x = 37,712.29

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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.