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Finding the Fourth Proportional to 50,644.80, 76,010.40 and 40,795.20

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Solution

The fourth proportional to 50,644.80, 76,010.40 and 40,795.20 is: 61,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,644.80 : 76,010.40 = 40,795.20 : x
  2. Step 2: Convert to fraction form
    50,644.80/76,010.40 = 40,795.20/x
  3. Step 3: Cross multiply
    50,644.80x = 76,010.40 × 40,795.20
  4. Step 4: Simplify right side
    50,644.80x = 3,100,859,470.08
  5. Step 5: Solve for x
    x = 3,100,859,470.08/50,644.80
  6. Step 6: Final answer
    x = 61,227.60

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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.