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Finding the Fourth Proportional to 69,813.75, 96,344.63 and 39,601.11

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Solution

The fourth proportional to 69,813.75, 96,344.63 and 39,601.11 is: 54,650.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,813.75 : 96,344.63 = 39,601.11 : x
  2. Step 2: Convert to fraction form
    69,813.75/96,344.63 = 39,601.11/x
  3. Step 3: Cross multiply
    69,813.75x = 96,344.63 × 39,601.11
  4. Step 4: Simplify right side
    69,813.75x = 3,815,354,389.54
  5. Step 5: Solve for x
    x = 3,815,354,389.54/69,813.75
  6. Step 6: Final answer
    x = 54,650.47

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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.