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Finding the Fourth Proportional to 60,990.42, 84,155.71 and 35,144.94

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Solution

The fourth proportional to 60,990.42, 84,155.71 and 35,144.94 is: 48,493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,990.42 : 84,155.71 = 35,144.94 : x
  2. Step 2: Convert to fraction form
    60,990.42/84,155.71 = 35,144.94/x
  3. Step 3: Cross multiply
    60,990.42x = 84,155.71 × 35,144.94
  4. Step 4: Simplify right side
    60,990.42x = 2,957,647,202.88
  5. Step 5: Solve for x
    x = 2,957,647,202.88/60,990.42
  6. Step 6: Final answer
    x = 48,493.64

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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.