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Finding the Fourth Proportional to 57,640.52, 79,543.76 and 32,146.92

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Solution

The fourth proportional to 57,640.52, 79,543.76 and 32,146.92 is: 44,362.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,640.52 : 79,543.76 = 32,146.92 : x
  2. Step 2: Convert to fraction form
    57,640.52/79,543.76 = 32,146.92/x
  3. Step 3: Cross multiply
    57,640.52x = 79,543.76 × 32,146.92
  4. Step 4: Simplify right side
    57,640.52x = 2,557,086,889.22
  5. Step 5: Solve for x
    x = 2,557,086,889.22/57,640.52
  6. Step 6: Final answer
    x = 44,362.66

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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.