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Finding the Fourth Proportional to 57,601.80, 79,513.20 and 55,733.40

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Solution

The fourth proportional to 57,601.80, 79,513.20 and 55,733.40 is: 76,934.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,601.80 : 79,513.20 = 55,733.40 : x
  2. Step 2: Convert to fraction form
    57,601.80/79,513.20 = 55,733.40/x
  3. Step 3: Cross multiply
    57,601.80x = 79,513.20 × 55,733.40
  4. Step 4: Simplify right side
    57,601.80x = 4,431,540,980.88
  5. Step 5: Solve for x
    x = 4,431,540,980.88/57,601.80
  6. Step 6: Final answer
    x = 76,934.07

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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.