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Finding the Fourth Proportional to 71,326.01, 98,431.44 and 39,062

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Solution

The fourth proportional to 71,326.01, 98,431.44 and 39,062 is: 53,906.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,326.01 : 98,431.44 = 39,062 : x
  2. Step 2: Convert to fraction form
    71,326.01/98,431.44 = 39,062/x
  3. Step 3: Cross multiply
    71,326.01x = 98,431.44 × 39,062
  4. Step 4: Simplify right side
    71,326.01x = 3,844,928,909.28
  5. Step 5: Solve for x
    x = 3,844,928,909.28/71,326.01
  6. Step 6: Final answer
    x = 53,906.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.