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Finding the Fourth Proportional to 69,805.49, 96,331.11 and 37,974.51

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Solution

The fourth proportional to 69,805.49, 96,331.11 and 37,974.51 is: 52,404.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,805.49 : 96,331.11 = 37,974.51 : x
  2. Step 2: Convert to fraction form
    69,805.49/96,331.11 = 37,974.51/x
  3. Step 3: Cross multiply
    69,805.49x = 96,331.11 × 37,974.51
  4. Step 4: Simplify right side
    69,805.49x = 3,658,126,700.01
  5. Step 5: Solve for x
    x = 3,658,126,700.01/69,805.49
  6. Step 6: Final answer
    x = 52,404.57

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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.