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Finding the Fourth Proportional to 69,341.97, 104,028.63 and 21,959.94

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Solution

The fourth proportional to 69,341.97, 104,028.63 and 21,959.94 is: 32,944.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,341.97 : 104,028.63 = 21,959.94 : x
  2. Step 2: Convert to fraction form
    69,341.97/104,028.63 = 21,959.94/x
  3. Step 3: Cross multiply
    69,341.97x = 104,028.63 × 21,959.94
  4. Step 4: Simplify right side
    69,341.97x = 2,284,462,473.08
  5. Step 5: Solve for x
    x = 2,284,462,473.08/69,341.97
  6. Step 6: Final answer
    x = 32,944.87

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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.