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Finding the Fourth Proportional to 69,659.71, 96,131.96 and 39,035.09

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Solution

The fourth proportional to 69,659.71, 96,131.96 and 39,035.09 is: 53,869.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,659.71 : 96,131.96 = 39,035.09 : x
  2. Step 2: Convert to fraction form
    69,659.71/96,131.96 = 39,035.09/x
  3. Step 3: Cross multiply
    69,659.71x = 96,131.96 × 39,035.09
  4. Step 4: Simplify right side
    69,659.71x = 3,752,519,851.21
  5. Step 5: Solve for x
    x = 3,752,519,851.21/69,659.71
  6. Step 6: Final answer
    x = 53,869.30

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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.