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Finding the Fourth Proportional to 70,162.55, 105,170.32 and 32,691.73

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Solution

The fourth proportional to 70,162.55, 105,170.32 and 32,691.73 is: 49,003.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,162.55 : 105,170.32 = 32,691.73 : x
  2. Step 2: Convert to fraction form
    70,162.55/105,170.32 = 32,691.73/x
  3. Step 3: Cross multiply
    70,162.55x = 105,170.32 × 32,691.73
  4. Step 4: Simplify right side
    70,162.55x = 3,438,199,016.14
  5. Step 5: Solve for x
    x = 3,438,199,016.14/70,162.55
  6. Step 6: Final answer
    x = 49,003.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.