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Finding the Fourth Proportional to 70,211.58, 96,891.96 and 38,380.60

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Solution

The fourth proportional to 70,211.58, 96,891.96 and 38,380.60 is: 52,965.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,211.58 : 96,891.96 = 38,380.60 : x
  2. Step 2: Convert to fraction form
    70,211.58/96,891.96 = 38,380.60/x
  3. Step 3: Cross multiply
    70,211.58x = 96,891.96 × 38,380.60
  4. Step 4: Simplify right side
    70,211.58x = 3,718,771,559.98
  5. Step 5: Solve for x
    x = 3,718,771,559.98/70,211.58
  6. Step 6: Final answer
    x = 52,965.22

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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.