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Finding the Fourth Proportional to 70,343.73, 97,074.29 and 38,512.62

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Solution

The fourth proportional to 70,343.73, 97,074.29 and 38,512.62 is: 53,147.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,343.73 : 97,074.29 = 38,512.62 : x
  2. Step 2: Convert to fraction form
    70,343.73/97,074.29 = 38,512.62/x
  3. Step 3: Cross multiply
    70,343.73x = 97,074.29 × 38,512.62
  4. Step 4: Simplify right side
    70,343.73x = 3,738,585,049.98
  5. Step 5: Solve for x
    x = 3,738,585,049.98/70,343.73
  6. Step 6: Final answer
    x = 53,147.38

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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.