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Finding the Fourth Proportional to 69,904.70, 96,469.60 and 38,073.60

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Solution

The fourth proportional to 69,904.70, 96,469.60 and 38,073.60 is: 52,542.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,904.70 : 96,469.60 = 38,073.60 : x
  2. Step 2: Convert to fraction form
    69,904.70/96,469.60 = 38,073.60/x
  3. Step 3: Cross multiply
    69,904.70x = 96,469.60 × 38,073.60
  4. Step 4: Simplify right side
    69,904.70x = 3,672,944,962.56
  5. Step 5: Solve for x
    x = 3,672,944,962.56/69,904.70
  6. Step 6: Final answer
    x = 52,542.17

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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.