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Finding the Fourth Proportional to 70,197.66, 96,872.60 and 38,366.55

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Solution

The fourth proportional to 70,197.66, 96,872.60 and 38,366.55 is: 52,945.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,197.66 : 96,872.60 = 38,366.55 : x
  2. Step 2: Convert to fraction form
    70,197.66/96,872.60 = 38,366.55/x
  3. Step 3: Cross multiply
    70,197.66x = 96,872.60 × 38,366.55
  4. Step 4: Simplify right side
    70,197.66x = 3,716,667,259.70
  5. Step 5: Solve for x
    x = 3,716,667,259.70/70,197.66
  6. Step 6: Final answer
    x = 52,945.74

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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.