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Finding the Fourth Proportional to 45,493.88, 68,253.15 and 25,786.26

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Solution

The fourth proportional to 45,493.88, 68,253.15 and 25,786.26 is: 38,686.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,493.88 : 68,253.15 = 25,786.26 : x
  2. Step 2: Convert to fraction form
    45,493.88/68,253.15 = 25,786.26/x
  3. Step 3: Cross multiply
    45,493.88x = 68,253.15 × 25,786.26
  4. Step 4: Simplify right side
    45,493.88x = 1,759,993,471.72
  5. Step 5: Solve for x
    x = 1,759,993,471.72/45,493.88
  6. Step 6: Final answer
    x = 38,686.38

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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.