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Finding the Fourth Proportional to 70,190.58, 96,863.05 and 38,359.48

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Solution

The fourth proportional to 70,190.58, 96,863.05 and 38,359.48 is: 52,936.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,190.58 : 96,863.05 = 38,359.48 : x
  2. Step 2: Convert to fraction form
    70,190.58/96,863.05 = 38,359.48/x
  3. Step 3: Cross multiply
    70,190.58x = 96,863.05 × 38,359.48
  4. Step 4: Simplify right side
    70,190.58x = 3,715,616,229.21
  5. Step 5: Solve for x
    x = 3,715,616,229.21/70,190.58
  6. Step 6: Final answer
    x = 52,936.11

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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.