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Finding the Fourth Proportional to 69,969.75, 96,560.52 and 39,754.53

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Solution

The fourth proportional to 69,969.75, 96,560.52 and 39,754.53 is: 54,862.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,969.75 : 96,560.52 = 39,754.53 : x
  2. Step 2: Convert to fraction form
    69,969.75/96,560.52 = 39,754.53/x
  3. Step 3: Cross multiply
    69,969.75x = 96,560.52 × 39,754.53
  4. Step 4: Simplify right side
    69,969.75x = 3,838,718,089.16
  5. Step 5: Solve for x
    x = 3,838,718,089.16/69,969.75
  6. Step 6: Final answer
    x = 54,862.54

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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.