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Finding the Fourth Proportional to 84,656.26, 126,935.79 and 25,474.42

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Solution

The fourth proportional to 84,656.26, 126,935.79 and 25,474.42 is: 38,197.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,656.26 : 126,935.79 = 25,474.42 : x
  2. Step 2: Convert to fraction form
    84,656.26/126,935.79 = 25,474.42/x
  3. Step 3: Cross multiply
    84,656.26x = 126,935.79 × 25,474.42
  4. Step 4: Simplify right side
    84,656.26x = 3,233,615,627.49
  5. Step 5: Solve for x
    x = 3,233,615,627.49/84,656.26
  6. Step 6: Final answer
    x = 38,197.01

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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.