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Finding the Fourth Proportional to 69,949.49, 96,530.31 and 38,118.38

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Solution

The fourth proportional to 69,949.49, 96,530.31 and 38,118.38 is: 52,603.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,949.49 : 96,530.31 = 38,118.38 : x
  2. Step 2: Convert to fraction form
    69,949.49/96,530.31 = 38,118.38/x
  3. Step 3: Cross multiply
    69,949.49x = 96,530.31 × 38,118.38
  4. Step 4: Simplify right side
    69,949.49x = 3,679,578,555.45
  5. Step 5: Solve for x
    x = 3,679,578,555.45/69,949.49
  6. Step 6: Final answer
    x = 52,603.37

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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.