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Finding the Fourth Proportional to 57,777.12, 79,766.80 and 36,574.56

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Solution

The fourth proportional to 57,777.12, 79,766.80 and 36,574.56 is: 50,494.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,777.12 : 79,766.80 = 36,574.56 : x
  2. Step 2: Convert to fraction form
    57,777.12/79,766.80 = 36,574.56/x
  3. Step 3: Cross multiply
    57,777.12x = 79,766.80 × 36,574.56
  4. Step 4: Simplify right side
    57,777.12x = 2,917,435,612.61
  5. Step 5: Solve for x
    x = 2,917,435,612.61/57,777.12
  6. Step 6: Final answer
    x = 50,494.65

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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.