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Finding the Fourth Proportional to 70,197.87, 96,872.17 and 38,366.49

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Solution

The fourth proportional to 70,197.87, 96,872.17 and 38,366.49 is: 52,945.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,197.87 : 96,872.17 = 38,366.49 : x
  2. Step 2: Convert to fraction form
    70,197.87/96,872.17 = 38,366.49/x
  3. Step 3: Cross multiply
    70,197.87x = 96,872.17 × 38,366.49
  4. Step 4: Simplify right side
    70,197.87x = 3,716,645,141.58
  5. Step 5: Solve for x
    x = 3,716,645,141.58/70,197.87
  6. Step 6: Final answer
    x = 52,945.27

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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.