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Finding the Fourth Proportional to 69,813.75, 96,335.67 and 39,589.41

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Solution

The fourth proportional to 69,813.75, 96,335.67 and 39,589.41 is: 54,629.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,813.75 : 96,335.67 = 39,589.41 : x
  2. Step 2: Convert to fraction form
    69,813.75/96,335.67 = 39,589.41/x
  3. Step 3: Cross multiply
    69,813.75x = 96,335.67 × 39,589.41
  4. Step 4: Simplify right side
    69,813.75x = 3,813,872,337.25
  5. Step 5: Solve for x
    x = 3,813,872,337.25/69,813.75
  6. Step 6: Final answer
    x = 54,629.24

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1.5x scale

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.