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Finding the Fourth Proportional to 89,700.87, 134,474.94 and 39,753.73

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Solution

The fourth proportional to 89,700.87, 134,474.94 and 39,753.73 is: 59,596.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,700.87 : 134,474.94 = 39,753.73 : x
  2. Step 2: Convert to fraction form
    89,700.87/134,474.94 = 39,753.73/x
  3. Step 3: Cross multiply
    89,700.87x = 134,474.94 × 39,753.73
  4. Step 4: Simplify right side
    89,700.87x = 5,345,880,456.53
  5. Step 5: Solve for x
    x = 5,345,880,456.53/89,700.87
  6. Step 6: Final answer
    x = 59,596.75

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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.