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Finding the Fourth Proportional to 69,959.52, 104,992.56 and 25,628.16

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Solution

The fourth proportional to 69,959.52, 104,992.56 and 25,628.16 is: 38,461.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,959.52 : 104,992.56 = 25,628.16 : x
  2. Step 2: Convert to fraction form
    69,959.52/104,992.56 = 25,628.16/x
  3. Step 3: Cross multiply
    69,959.52x = 104,992.56 × 25,628.16
  4. Step 4: Simplify right side
    69,959.52x = 2,690,766,126.49
  5. Step 5: Solve for x
    x = 2,690,766,126.49/69,959.52
  6. Step 6: Final answer
    x = 38,461.76

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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.