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Finding the Fourth Proportional to 69,706.92, 96,174.36 and 39,487.44

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Solution

The fourth proportional to 69,706.92, 96,174.36 and 39,487.44 is: 54,480.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,706.92 : 96,174.36 = 39,487.44 : x
  2. Step 2: Convert to fraction form
    69,706.92/96,174.36 = 39,487.44/x
  3. Step 3: Cross multiply
    69,706.92x = 96,174.36 × 39,487.44
  4. Step 4: Simplify right side
    69,706.92x = 3,797,679,270.04
  5. Step 5: Solve for x
    x = 3,797,679,270.04/69,706.92
  6. Step 6: Final answer
    x = 54,480.66

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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.