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Finding the Fourth Proportional to 50,753.87, 76,130.39 and 39,669.88

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Solution

The fourth proportional to 50,753.87, 76,130.39 and 39,669.88 is: 59,504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,753.87 : 76,130.39 = 39,669.88 : x
  2. Step 2: Convert to fraction form
    50,753.87/76,130.39 = 39,669.88/x
  3. Step 3: Cross multiply
    50,753.87x = 76,130.39 × 39,669.88
  4. Step 4: Simplify right side
    50,753.87x = 3,020,083,435.65
  5. Step 5: Solve for x
    x = 3,020,083,435.65/50,753.87
  6. Step 6: Final answer
    x = 59,504.50

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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.